Gangrena de Fournier secundaria a cuerpo extraño: Reporte de caso / Fournier's gangrene secondary to a foreign body: Case report

Introducción. La gangrena de Fournier es un proceso infeccioso progresivo que compromete piel, tejido celular subcutáneo, grasa y fascia subyacente, con una incidencia de 1,6 pacientes por cada 100.000 personas/año. Se considera una urgencia quirúrgica, que requiere de manejo oportuno, ya que puede llegar a ser fatal, con una tasa de mortalidad del 20 al 35 %, que es más alta en hombres, en la tercera década de la vida y en pacientes inmunocomprometidos. Caso clínico. Se presenta el caso clínico de un paciente masculino de 44 años de edad, quien cursó con gangrena de Fournier secundaria a una espina de pescado de 5 cm de largo, incrustada en la unión anorrectal. Resultados. El paciente fue manejado por urología y cirugía general, requirió hospitalización en la Unidad de Cuidados Intensivos y curaciones por parte de terapia enterostomal, con resultados satisfactorios. Conclusiones. Sus posibles causas son múltiples y en ocasiones puede ser desencadenada por un factor externo, como un cuerpo extraño. Uno de los factores predisponentes es la obesidad. El diagnóstico oportuno y un tratamiento con intervención multidisciplinaria mejoran la sobrevida y la calidad de vida de los pacientes.

Introduction. Fournier's gangrene is a progressive infectious process that involves skin, subcutaneous tissue, fat and underlying fascia, with an incidence of 1.6 per 100,000 people/year. It is considered a surgical emergency, which requires timely management since it can be fatal, with a mortality rate of 20 to 35%, which is higher in men, in the third decade of life and in immunocompromised patients. Clinical case. Clinical case. A 44-year-old male patient is presented with Fournier's gangrene secondary to a 5 cm long fishbone embedded in the anorectal junction. Results. The patient was managed by urology and general surgery, requiring hospitalization in the ICU and treated by enterostomal therapy with satisfactory results. Conclusions. Its possible causes are multiple and sometimes it can be triggered by an external factor, such as a foreign body. One of the predisposing factors is obesity. Timely diagnosis and treatment with multidisciplinary intervention improve survival and quality of life of patients

Fascitis necrosante como causa de muerte en trauma de recto. Reporte de caso / Necrotizing fasciitis as a cause of death in rectal trauma. Case report

Introducción. La perforación del recto por trauma cerrado es poco frecuente y se asocia a fracturas pélvicas. En pacientes con perforaciones de recto no traumáticas se ha reportado fascitis necrosante en miembros inferiores, en la mayoría de los casos asociada a alta mortalidad. Caso clínico. Hombre de 36 años con trauma cerrado abdomino-pélvico y perforación de recto inferior, quien recibió manejo quirúrgico mediante derivación intestinal y fijación pélvica. Evolucionó con hematoma escrotal sobreinfectado, inestabilidad hemodinámica, signos de fascitis necrosante y choque séptico 4 días posterior a su ingreso. Resultados. Se tomó muestra para cultivo del hematoma escrotal que reportó E. coli. La patología del desbridamiento escrotal informó necrosis de coagulación en toda la muestra. Conclusión. El tacto rectal debe realizarse siempre ante la presencia de enfisema subcutáneo al examen físico o en la tomografía, para un diagnóstico temprano y manejo quirúrgico multidisciplinario oportuno, según el caso. La presencia de enfisema subcutáneo debe aumentar la sospecha de perforación de recto. Hay pocos reportes de fascitis secundaria a perforación de recto por trauma cerrado, por lo que no se conoce con precisión la mortalidad asociada.

Introduction. Rectal perforation due to blunt trauma is rare and associated with pelvic fractures. Signs of necrotizing fasciitis in lower limbs have been reported in non-traumatic rectal perforations, in most cases associated with high mortality. Case report. A 36-year-old man presents blunt abdomino-pelvic trauma and perforation of the lower rectum. Surgical management by intestinal diversion and pelvic fixation is performed. 4 days after admission, evolves with over-infected scrotal hematoma, hemodynamic instability, signs of necrotizing fasciitis and septic shock. Results. A sample for culture was taken from a scrotal hematoma that reported E. coli. Pathology of scrotal debridement reported coagulation necrosis in the entire specimen. Discussion. Digital rectal examination should always be performed in the presence of subcutaneous emphysema on physical examination or CT scan for early and multidisciplinary diagnosis and surgical management as appropriate. Conclusion. The presence of subcutaneous emphysema should raise the suspicion of rectal perforation. There are few reports of rectal perforation due to blunt trauma and fasciitis, so the associated mortality is not precisely known.

Vegetating lesions that appear in the scar after neoadjuvant therapy for rectal tumors: tumor regrowth or benign neoplasm?

Introduction: After the diagnosis of neoplasm of the middle and distal rectum, patients are often submitted to oncological treatment by neoadjuvant therapy. At the end of this treatment, those patients who show complete clinical response can choose, together with their physician, to adopt the watch-and-wait strategy; although it implies lower morbidity for the patient, this strategy is dependent on strict adherence to treatment follow-up for the early identification of any future local injury. Materials and Methods: Survey of data from medical records and description, and discussion of case reports with a literature review in books and databases. Results: We report the case of a 73-year-old patient diagnosed with moderately differentiated adenocarcinoma of the middle rectum, Stage II (cT3bN0M0), who presented complete clinical response after undergoing treatment with neoadjuvant therapy. Together with the assistant team, the watch-and-wait strategy was chosen. During the follow-up, an endoscopic examination showed a vegetating at the proximal limit of the tumor scar. We chose to perform submucosal endoscopic dissection. The report of the anatomopathological examination evidenced a serrated adenoma with narrow margins free of neoplasia. Conclusion: Patient adherence to cancer treatment using the watch-and-wait strategy is essential for the early identification of new local lesions. After resection of the lesion identified in the tumor scar site as a neoplasm-free lesion, it is consistent to think that this lesion would be the origin of the neoplasm, given the adenomatous origin. (AU)

Intestinal endometriosis: outcomes from a multidisciplinary specialized referral center / Endometriose intestinal: resultados de um centro de referência multidiscipilinar especializado

ABSTRACT BACKGROUND: Deep penetrating endometriosis (DE) can affect abdominal and pelvic organs like the bowel and bladder, requiring treatment to alleviate symptoms. AIMS: To study and investigate clinical and surgical outcomes in patients diagnosed with DE involving the intestines, aiming to analyze the effectiveness of surgical treatments. METHODS: All cases treated from January 2021 to July 2023 were included, focusing on patients aged 18 years or older with the disease affecting the intestines. Patients without intestinal involvement and those with less than six months of post-surgery follow-up were excluded. Intestinal involvement was defined as direct invasion of the intestinal wall or requiring adhesion lysis for complete resection. Primary outcomes were adhesion lysis, rectal shaving, disc excision (no-colectomy group), and segmental resection (colectomy group) along with surgical complications like anastomotic leak and fistulas, monitored for up to 30 days. RESULTS: Out of 169 patients with DE surgically treated, 76 met the inclusion criteria. No colectomy treatment was selected for 50 (65.7%) patients, while 26 (34.2%) underwent rectosigmoidectomy (RTS). Diarrhea during menstruation was the most prevalent symptom in the RTS group (19.2 vs. 6%, p<0.001). Surgical outcomes indicated longer operative times and hospital stays for the segmental resection group, respectively 186.5 vs. 104 min (p<0.001) and 4 vs. 2 days, (p<0.001). Severe complications (Clavien-Dindo ≥3) had an overall prevalence of 6 (7.9%) cases, without any difference between the groups. There was no mortality reported. Larger lesions and specific symptoms like dyschezia and rectal bleeding were associated with a higher likelihood of RTS. Bayesian regression highlighted diarrhea close to menstruation as a strong predictor of segmental resection. CONCLUSIONS: In patients with DE involving the intestines, symptoms such as dyschezia, rectal bleeding, and menstrual period-related diarrhea predict RTS. However, severe complication rates did not differ significantly between the segmental resection group and no-colectomy group.

RESUMO RACIONAL: A endometriose profunda infiltrativa (EP) pode afetar órgãos abdominais e pélvicos, tais como o intestino e a bexiga, necessitando de tratamento para aliviar os sintomas. OBJETIVOS: Estudar e investigar resultados clínicos e cirúrgicos em pacientes com diagnóstico de EP envolvendo o intestino, visando analisar a eficácia dos tratamentos cirúrgicos. MÉTODOS: Foram incluídos todos os casos atendidos de janeiro de 2021 a julho de 2023, com foco em pacientes com 18 anos ou mais com a doença acometendo o intestino. Foram excluídos pacientes sem comprometimento intestinal e aqueles com menos de seis meses de acompanhamento pós-operatório. O envolvimento intestinal foi definido como invasão direta da parede intestinal ou necessidade de lise de aderências para ressecção completa. Os desfechos primários foram lise de aderências, raspagem retal e excisão discóide (grupo não colectomia), e ressecção segmentar (grupo colectomia), juntamente com complicações cirúrgicas como fístulas, monitoradas por até 30 dias. RESULTADOS: Das 169 pacientes com EP tratadas cirurgicamente, 76 preencheram os critérios de inclusão. Não foi indicado colectomia em 50 (65,7%) pacientes, enquanto 26 (34,2%) foram submetidos à retossigmoidectomia (RTS). A diarreia durante a menstruação foi o sintoma mais prevalente no grupo RTS (19,2% vs. 6,0%, p<0,001). Os resultados cirúrgicos indicaram tempos operatórios e internações hospitalares mais longos para o grupo de ressecção segmentar, respectivamente, 186,5 vs. 104 min (p<0,001) e 4 vs. 2 dias, (p<0,001). As complicações graves (Clavien-Dindo ≥3) tiveram prevalência global de 6 (7,9%) casos, sem diferença entre os grupos. Não houve mortalidade relatada. Lesões mais graves e sintomas específicos como disquezia e sangramento retal foram associados a maior probabilidade de indicação de RTS. A regressão bayesiana destacou a diarreia próxima à menstruação como um forte preditor de ressecção segmentar. CONCLUSÕES: Em pacientes com endometriose envolvendo os intestinos, sintomas como disquezia, sangramento retal e diarreia relacionada ao período menstrual predizem a indicação de RTS. No entanto, as taxas de complicações graves não diferiram significativamente entre o grupo de ressecção segmentar e o grupo sem colectomia.

Clinicopathological features of colorectal cancer patients under 30 years of age.

BACKGROUND: Colorectal cancer (CRC) is the second cause of cancer death in the world and is estimated to have been responsible for almost 935,000 deaths during 2020. OBJECTIVE: Describe clinicopathological features, overall survival (OS) and progression-free survival (PFS) in CRC patients under 30 years. METHOD: This is a retrospective cohort study in patients under 30 years diagnosed with CRC. RESULTS: From 2017 to 2021, 1823 patients were diagnosed with CRC, of which 54 (2.96%) were under 30 years. The OS, during 4 years, was 41.5%. The clinical stage found IV (hazard ratio [HR]: 6.212; 95% confidence interval [95% CI]: 2.504-15.414; p < 0.001), giving neoadjuvant therapy (HR: 0.705; 95% CI: 0.499-0.996; p = 0.047) and no medical history of Lynch syndrome (HR: 3.925; 95% CI: 1.355-11.364; p = 0.012) are independent predictors of mortality. The PFS, during 4 years, was 21.3%. Clinical stage IV (HR: 2.418; 95% CI: 1.000-5.850; p < 0.050), and no diagnosis of Lynch syndrome (HR: 3.800; 95% CI: 1.398-10.326; p = 0.009) are independent predictors. CONCLUSIONS: Younger patients are usually diagnosed with CRC in advanced stages. Early symptoms and evaluation, irrespective of age, are crucial.

ANTECEDENTES: El cáncer colorrectal (CCR) es la segunda causa de muerte por cáncer en el mundo y se estima que fue responsable de casi 935,000 muertes durante el año 2020. OBJETIVO: Describir las características clinicopatológicas, la supervivencia global (SG) y la supervivencia libre de progresión (SLP) en pacientes con CCR menores de 30 años. MÉTODO: Estudio de cohorte retrospectivo en pacientes con diagnóstico de CCR menores de 30 años. RESULTADOS: Entre 2017 y 2021 se diagnosticaron 1823 pacientes con CCR, de los cuales 54 (2.96%) eran menores de 30 años. La SG a 4 años fue del 41.5%. Se encontró que la etapa clínica IV (hazard ratio [HR]: 6.212; intervalo de confianza del 95% [IC95%]: 2.504-15.414; p < 0.001), recibir tratamiento neoadyuvante (HR: 0.705; IC95%: 0.499-0.996; p = 0.047) y no tener antecedente de síndrome de Lynch (HR:3.925; IC95%: 1.355-11.364; p = 0.012) son predictores de mortalidad independientes. La SLP a 4 años fue del 21.3%. La etapa clínica IV (HR: 2.418; IC95%: 1.000-5.850; p < 0.050) y el no contar con diagnóstico de síndrome de Lynch (HR: 3.800; IC95%: 1.398-10.326; p = 0.009) son predictores independientes. CONCLUSIONES: Los pacientes jóvenes son diagnosticados con CCR en etapas avanzadas. Los síntomas iniciales, junto con la evaluación, independientemente de la edad, son cruciales.

Valor de la elastografía por patrones de colores en la reestadificación del cáncer de recto / Value of elastography by color patterns in the restaging of rectal cancer i: en

Introducción: La elastografía cualitativa por ecografía endoscópica es una técnica para examinar las propiedades elásticas de los tejidos, que puede distinguir la fibrosis del tumor mediante patrones de colores. Objetivo: Determinar el valor de la elastografía por patrones de colores en la reestadificación del cáncer de recto. Métodos: Se efectuó un estudio observacional y descriptivo (serie de casos) de 54 pacientes con cáncer de recto atendidos en el Centro Nacional de Cirugía de Mínimo Acceso, en La Habana, entre septiembre del 2018 y diciembre del 2022, a quienes se les realizó elastografía por ecografía endoscópica para la reevaluación del tumor. Para determinar el valor de dicha técnica se calculó la sensibilidad, la especificidad, los valores predictivos positivo y negativo, las razones de verosimilitud positiva y negativa, así como el índice de Youden. Se estableció la concordancia diagnóstica según el índice kappa y el estudio histológico de la muestra tomada fue el estándar de referencia. Resultados: La concordancia de la elastografía con el resultado anatomopatológico fue buena (κ=0,84). La especificidad y el índice de validez resultaron ser de 91,7 y 94,4 %, respectivamente; mientras que el valor predictivo negativo fue de 84,6 %. Los 16 pacientes con patrón elastográfico mixto (ye3) tenían tumor residual localizado en alguna de las capas de la pared del recto. El índice de Youden alcanzó valores cercanos a 1. Conclusiones: El valor de esta técnica radica en su especificidad diagnóstica y en el valor predictivo negativo al diferenciar la fibrosis del tumor residual en la pared rectal.

Introduction: The qualitative elastography by endoscopic echography is a technique to examine the elastic properties of tissues that can distinguish the fibrosis of the tumor by means of color patterns. Objective: To determine the value of elastography by color patterns in the reestadification of the rectum cancer. Methods: An observational and descriptive study (serial cases) of 54 patients with rectum cancer was carried out, who were assisted in the National Center of Minimum Access Surgery, in Havana, between September, 2018 and December, 2022 to whom elastography by endoscopic echography were carried out for the reevaluation of the tumor. To determine the value of this technique the sensibility, specificity, the predictive positive and negative values, the positive and negative true ratio, as well as the index of Youden were calculated. The diagnostic consistency was established according to the kappa index and the histologic study of the sample was the reference standard. Results: The elastography consistency with the pathologic result was good (ĸ=0.84). The specificity and the index of validity were 91.7 and 94.4%, respectively; while the negative predictive value was 84.6%. The 16 patients with mixed elastographic pattern (ye3) had residual tumor located in some of the layers of the rectum wall. The Youden index reached values close to 1. Conclusions: The value of this technique resides in its diagnostic specificity and negative predictive value when differentiating fibrosis from the residual tumor in the rectal wall.

Data mining identifies novel RNA-binding proteins involved in colon and rectal carcinomas.

Colorectal adenocarcinoma (COREAD) is the second most deadly cancer and third most frequently encountered malignancy worldwide. Despite efforts in molecular subtyping and subsequent personalized COREAD treatments, multidisciplinary evidence suggests separating COREAD into colon cancer (COAD) and rectal cancer (READ). This new perspective could improve diagnosis and treatment of both carcinomas. RNA-binding proteins (RBPs), as critical regulators of every hallmark of cancer, could fulfill the need to identify sensitive biomarkers for COAD and READ separately. To detect new RBPs involved in COAD and READ progression, here we used a multidata integration strategy to prioritize tumorigenic RBPs. We analyzed and integrated 1) RBPs genomic and transcriptomic alterations from 488 COAD and 155 READ patients, 2) ∼ 10,000 raw associations between RBPs and cancer genes, 3) ∼ 15,000 immunostainings, and 4) loss-of-function screens performed in 102 COREAD cell lines. Thus, we unraveled new putative roles of NOP56, RBM12, NAT10, FKBP1A, EMG1, and CSE1L in COAD and READ progression. Interestingly, FKBP1A and EMG1 have never been related with any of these carcinomas but presented tumorigenic features in other cancer types. Subsequent survival analyses highlighted the clinical relevance of FKBP1A, NOP56, and NAT10 mRNA expression to predict poor prognosis in COREAD and COAD patients. Further research should be performed to validate their clinical potential and to elucidate their molecular mechanisms underlying these malignancies.

Ghost ileostomy release down: our initial experience

Background: Many publications describe the advantages of the creation of ghost ileostomy (GI) to prevent the need for formal covering ileostomy in more than 80% of carcinoma rectum patients. However, none of the papers describes exactly how to ultimately remove the GI in these 80% of patients in whom it doesn't need formal maturation. Aim: To describe and evaluate the ghost ileostomy release down (GIRD) technique in terms of feasibility, complications, hospital stay, procedure time etc. in patients with low anterior resection/ultra-low anterior resection (LAR/uLAR) with GI for carcinoma rectum. Method: The present was a prospective cohort study of patients with restorative colorectal resections with GI for carcinoma rectum, Postoperatively the patients were studied with respect to ease and feasibility of the release down of GI and its complications. The data was collected, analyzed and inference drawn. Results: A total of 26 patients needed the GIRD and were included in the final statistical analysis of the study. The procedure was done between 7th to 16th postoperative days (POD) and was successful in all patients without the need of any additional surgical procedure. None of the patients required any local anesthetic injection or any extra analgesics. The average time taken for procedure was 5-minutes and none of the patients had any significant difficulty in GI release. There were no immediate postprocedure complications. Conclusion: The GIRD technique is a simple, safe, and quick procedure done around the 10th POD that can easily be performed by the bedside of patient without the need of any anesthesia or additional analgesics. (AU)

Uso de stent en estenosis colorrectal benigna / Stent utilization in benign colorectal stenosis

Introducción. La estenosis colorrectal benigna hace referencia a una condición anatómica caracterizada por una disminución del diámetro de la luz intestinal distal a la válvula ileocecal, ocasionando una serie de signos y síntomas de tipo obstructivo. Es una entidad poco frecuente, secundaria en la gran mayoría de veces a la realización de anastomosis intestinales al nivel descrito. El objetivo de esta investigación fue determinar la utilidad del stentcolónico en estenosis secundaria a patología colorrectal no neoplásica. Métodos. Estudio descriptivo de una cohorte de pacientes que desarrolló estenosis colorrectal de origen benigna confirmada por colonoscopía, en 3 hospitales de alta complejidad de la ciudad de Medellín, Colombia, entre los años 2007 y 2021. Resultados. Se incluyeron 34 pacientes con diagnóstico de estenosis colorrectal de origen benigno, manejados con stents metálicos autoexpandibles. La mediana de seguimiento fue de 19 meses y se obtuvo éxito clínico en el 73,5 % de los casos. La tasa de complicación fue del 41,2 %, dada principalmente por reobstrucción y migración del stent, y en menor medida por perforación secundaria a la colocación del dispositivo. Conclusión. Los stents metálicos autoexpandibles representan una opción terapéutica en pacientes con obstrucción colorrectal, con altas tasas de mejoría clínica en pacientes con patología estenosante no maligna. Cuando la derivación por medio de estoma no es una opción, este tipo de dispositivos están asociados a altas tasas de éxito clínico y mejoría de la calidad de vida de los pacientes

Introduction. Benign colorectal stenosis refers to an anatomical condition characterized by a decrease in the diameter of the intestinal lumen distal to the ileocecal valve, which might cause a series of obstructive signs and symptoms. It is a rare entity, caused in the vast majority of cases due to intestinal anastomosis at the described level. The purpose of this study is to determine the performance of colonic stents in the management of non-malignant colorectal strictures. Methods. Descriptive study of a cohort of patients who developed a benign colorectal stenosis confirmed by colonoscopy in three high-complexity hospitals in the city of Medellín, Colombia, between 2007 and 2021. Results. Thirty-four patients diagnosed with benign colorectal stenosis managed with self-expanding metal stents were included in the study. Median follow-up was 19 months, obtaining clinical success in 73.5% of cases, with a complication rate of 41.2%, mainly due to reobstruction and migration of the stent, and to a lesser extent due to perforation secondary to device placement.Conclusion. Self-expanding metallic stents represent a therapeutic option in patients with colorectal obstruction caused by non-malignant stenosing pathology. When diversion through a stoma is not an option, this type of device is associated with high rates of clinical success and improvement in the patients' quality of life

Escisión meso-rectal total por vía trans anal (TaTME). Experiencia institucional / Trans anal total meso-rectal excision (TaTME). Institutional experience

Introducción. La cirugía es la base del tratamiento curativo del cáncer de recto. La escisión meso-rectal total ha permitido mejorar los desenlaces oncológicos, disminuyendo las tasas de recurrencia locorregional e impactando en la supervivencia global. El empleo de esta técnica en los tumores de recto medio o distal es un reto quirúrgico, en el que la vía trans anal, permite superar las dificultades técnicas. Método. Se realizó un estudio observacional retrospectivo, recolectando la información de los pacientes con cáncer de recto medio y distal llevados a cirugía con esta técnica, en dos instituciones de cuarto nivel en Medellín, Colombia, entre enero de 2017 y marzo de 2022. Se analizaron sus características demográficas, la morbilidad perioperatoria y la pieza quirúrgica. Resultados. Se incluyeron 28 pacientes sometidos al procedimiento trans anal y laparoscópico de forma simultánea; al 57 % se les realizó una ileostomía de protección. Hubo complicaciones en el 60,7 % de los pacientes; ocurrieron cuatro casos de fuga anastomótica. No se presentó ninguna mortalidad perioperatoria. Conclusiones. La tasa de morbilidad perioperatoria es acorde con lo reportado en la literatura. Se resalta la importancia de la curva de aprendizaje quirúrgica y de incluir la calificación de la integridad meso-rectal dentro del informe patológico. Se requiere seguimiento a largo plazo para determinar el impacto en desenlaces oncológicos, calidad de vida y morbilidad

Introduction. Surgery is the pillar of curative treatment for rectal cancer. Total meso-rectal excision has improved oncological outcomes, decreasing locoregional recurrence rates and impacting overall survival. The use of this technique in tumors of the middle or distal rectum is a surgical challenge, in which the trans anal route allows overcoming technical difficulties. Method. A retrospective observational study was carried out, collecting information from patients with middle and distal rectal cancer undergoing surgery with this technique, in two level 4 institutions in Medellín, Colombia, between January 2017 and March 2022. Results. Twenty-eight patients were included; their demographic characteristics, perioperative morbidity, and surgical specimen were analyzed. All patients underwent the trans anal and laparoscopic procedures simultaneously; 57% underwent a protective ileostomy. There was no perioperative mortality. Complications occurred in 60.7% of the patients. Only four cases of anastomotic leak occurred. Conclusions. The perioperative morbidity rate is consistent with that reported in the literature; the importance of the surgical curve and to include the qualification of the meso-rectal integrity within the pathological report is highlighted. Long-term follow-up is required to determine the impact on oncological outcomes, quality of life, and morbidity

Signet ring cell carcinoma of the rectal stump in a known ulcerative colitis patient.

Colorectal carcinoma (CRC) is the third most commonly diagnosed cancer worldwide and is the second most common cause of cancer-related deaths. However, the Omani population shares the major burden as the most prevalent carcinoma. The disease is comparatively higher in males than females. Patients with pre-existing risk factors, including inflammatory bowel disease, are at increased risk of developing neoplasia. Among the various histopathological subtypes of adenocarcinoma in the rectum, signet ring cell carcinoma is the rarest and accounts for approximately 1% of the cases. Given the aggressive nature of this tumor, advanced presentation, stage, and poor prognosis, regular endoscopic surveillance is essential. Hereby, we report a rare case of signet ring cell carcinoma arising in the rectal stump in an already diagnosed and operated patient of Ulcerative colitis.

Migración de catéter distal a nivel del recto como complicación de derivación ventriculoperitoneal. Reporte de caso / Catheter Migration Through the Rectum as Ventricular Peritoneal Shunt Complication. Case Report

Resumen La hidrocefalia es una entidad nosológica común que en muchos casos tiene como tratamiento de elección la derivación ventricular hacia cualquier cavidad. Dentro de las complicaciones más frecuentes, tenemos las abdominales con formación de colecciones, así como irrupción a sistema intestinal con posterior migración del mismo con presentación de sintomatología a este nivel. Presentamos el caso de un paciente con nula sintomatología abdominal y migración del catéter distal hacia el recto.

Abstract Hydrocephalus is a common nosological entity, with ventricular shunting towards any cavity as the treatment of choice in many cases. Among the most frequent complications, we have the abdominal ones with the formation of collections, as well as irruption to the intestinal system with subsequent migration of the same with presentation of symptoms at this level. We present the case of a patient with no abdominal symptoms and migration of the distal catheter towards the rectum.

Rectal stimulation with prebiotics and probiotics before ileostomy reversal: a study protocol for a randomized controlled trial.

BACKGROUND: Ileostomy closure is associated with a high rate of postoperative morbidity, and adynamic ileus is the most common complication, with an incidence of up to 32%. This complication is associated with delayed initiation of oral diet intake, abdominal distention, prolonged hospital stay, and more significant patient discomfort. The present study aims to evaluate the rectal stimulus with prebiotics and probiotics before ileostomy reversal. METHODS: This is a protocol study for an open-label randomized controlled clinical trial. Ethical approval was received (CAAE: 56551722.6.0000.0071). The following criteria will be used for inclusion: adult patients with rectal cancer stages cT3/4Nx or cTxN+ that underwent loop protection ileostomy, patients treated with neoadjuvant chemoradiotherapy, and patients who underwent laparoscopic or robotic total mesorectal excision. Patients will be randomized to one of two groups. The intervention group (with rectal stimulus): the patients will apply 500 ml of saline solution with 6 g of Simbioflora® rectally, once a day, for 15 days before ileostomy closure. The control group (without rectal stimulation): the patients will close the ileostomy with no previous rectal stimulus. The primary outcomes will be the adynamic ileus (need for postoperative nasogastric tube insertion; nausea/vomiting; or intolerance to oral feedings within the first 72 h) and intestinal transit (time to first evacuation/flatus). RESULTS: The patient's enrollment starts in January 2023. We expect to finish in July 2025. DISCUSSION: The findings of this randomized clinical study may have important implications for managing patients undergoing ileostomy reversal. TRIAL REGISTRATION: This study is registered in the Brazilian Trial Registry (ReBEC) under RBR-366n64w. Registration date: 19/07/2022.

Signet ring cell carcinoma of the rectal stump in a known ulcerative colitis patient

ABSTRACT Colorectal carcinoma (CRC) is the third most commonly diagnosed cancer worldwide and is the second most common cause of cancer-related deaths. However, the Omani population shares the major burden as the most prevalent carcinoma. The disease is comparatively higher in males than females. Patients with pre-existing risk factors, including inflammatory bowel disease, are at increased risk of developing neoplasia. Among the various histopathological subtypes of adenocarcinoma in the rectum, signet ring cell carcinoma is the rarest and accounts for approximately 1% of the cases. Given the aggressive nature of this tumor, advanced presentation, stage, and poor prognosis, regular endoscopic surveillance is essential. Hereby, we report a rare case of signet ring cell carcinoma arising in the rectal stump in an already diagnosed and operated patient of Ulcerative colitis.

Watch and wait, worth It?

Background: The surgery with total mesorectal excision recommended by R. J. Heald in 1982 is the gold standard. Rectal cancer (RC) surgery has a morbidity rate ranging from 6 to 35%, and it can cause functional issues such as sexual, urinary, and bowel dysfunction in the long term. Neoadjuvant chemoradiotherapy (CRT) has been gaining ground in patients with lesions in the middle and lower rectum. The aim of the present study is to present the experience of a reference service in the treatment of RC. Patients and Methods: A retrospective study involving 53 patients diagnosed with RC between January 2017 and December 2019 with follow-up until December 2020. We examined tumor location, disease stage, digital rectal exam findings, carcinoembryonic antigen (CEA), therapeutic modality offered, and follow-up time. Results: A total of 32% of the patients were men and 68% were women, with a mean age of 60 years old. Location: upper rectum in 6 cases, middle rectum in 21 cases, and lower rectum in 26 cases with evolution from 9.8 to 13.5 months. The most frequent complaints were hematochezia and constipation. A total of 36 patients underwent neoadjuvant therapy: 11 complete clinical response (CCR) (30.5%), 20 (55.5%) partial clinical response (PCR), and no response in 5 patients (14%). The follow-up ranged from 12 to 48 months, with a mean of 30.5 months. A total of 25% of the patients had RC that went beyond the mesorectal fascia, and 22.64% had metastases in other parts of the body when they were diagnosed. Conclusion: Neoadjuvant radio and chemotherapy present themselves as an alternative in the treatment of rectal cancer. In 36 patients, 30.5% had a complete clinical response, 55.5% had a partial clinical response, and 14% had no response. It was worth doing the "Watch and Wait" (W&W) to sample. A definitive colostomy was avoided. However, it is necessary to expand the study to a larger follow-up and more patients. Additionally, it is necessary to implement a multicenter study. (AU)

Absceso hepático por Enterobius vermicularis como diagnóstico diferencial de metástasis hepática en cáncer colorrectal, reporte de caso / Liver Abscess Caused by Enterobius vermicularis as a Differential Diagnosis for Liver Metastasis in Colorectal Cancer, Case Report

Resumen Introducción: el cáncer colorrectal es la cuarta causa de mortalidad asociada con cáncer en el mundo. La identificación de las metástasis de este tumor en el momento prequirúrgico es cada vez más frecuente por los estudios imagenológicos con los que se cuenta en la actualidad. Presentamos el caso de una paciente con infección por Enterobius vermicularis que simula la presencia de metástasis hepáticas. Presentación del caso: se presenta el caso de una paciente femenina proveniente del área rural, con dolor abdominal de 1 año de evolución asociado con hemorragia de vías digestivas bajas y pérdida de peso. Las imágenes y estudios endoscópicos muestran una lesión tumoral en el colon sigmoide con biopsias que reportan adenocarcinoma de colon sigmoides, además de lesiones hepáticas sugestivas de malignidad. Se llevó a resección anterior de recto y sigmoides con anastomosis alta y toma de biopsias hepáticas, que descartaron la malignidad e informaron la presencia de infección hepática por E. vermicularis. Discusión: La infección por E. vermicularis a nivel hepático presentada en el caso es poco frecuente, dicha infección puede simular la presencia de metástasis hepáticas, por lo cual debe tenerse en cuenta como diagnóstico diferencial de enfermedad metastásica de cáncer colorrectal.

Abstract Introduction: colorectal cancer is the fourth leading cause of cancer-related mortality worldwide. The identification of the metastases of this tumor in the preoperative stage is increasingly frequent due to the imaging studies currently available. We present the case of a patient with an infection caused by Enterobius vermicularis that simulates the presence of liver metastases. Case presentation: a female patient from a rural area showing a one-year abdominal pain evolution associated with lower gastrointestinal tract bleeding and weight loss. Endoscopic imaging and studies displayed a tumor lesion in the sigmoid colon, with biopsies reporting sigmoid colon adenocarcinoma and liver lesions suggesting malignancy. Anterior resection of the rectum and sigmoid was performed with high anastomosis and liver biopsies, which ruled out malignancy and reported the presence of liver infection by E. vermicularis. Discussion: in this case, the hepatic E. vermicularis infection was rare. This infection can simulate the presence of liver metastases; therefore, it should be considered a differential diagnosis of metastatic colorectal cancer.

[Rectal metastasis of a resected urothelial bladder cancer]. / Metástasis rectal de carcinoma urotelial de vejiga resecado.

We present the case of a female patient with a history of high-grade urothelial carcinoma of the bladder with secondary lymph node and bone involvement, who presented with hematochezia, tenesmus and rectal pain one year after her oncological surgery. The abdomen and pelvis magnetic resonance image showed a 5 cm solid rectal lesion that stenosed the lumen and crossed the peritoneum, 6 cm away from the anal margin. The histology of this lesion reported an urothelial metastasis at the level of the lower rectum according to the patient's history. This case identifies an atypical evolution of urothelial carcinomas (UC), highlighting an unusual route of distant metastasis. UC can, on rare occasions, metastasize to the rectum, usually in advanced or recurrent cases of the disease. As the literature available on this topic is scarce, it is crucial to highlight the importance of maintaining high suspicion in patients with a history of urothelial carcinoma and urinary/rectal symptoms (rectal pain and urgency, suprapubic pain, urinary and fecal incontinence).

Se presenta el caso de una paciente con antecedentes de carcinoma urotelial de vejiga de alto grado con compromiso secundario ganglionar y óseo, la cual presentó cuadro de hematoquecia, tenesmo y dolor rectal un año después de su cirugía oncológica. La resonancia magnética de abdomen y pelvis, demostró una lesión sólida rectal de 5 cm de longitud que estenosaba la luz y atravesaba el peritoneo, a 6 cm del margen anal. La anatomía patológica de dicha lesión, informó una metástasis urotelial a nivel del recto inferior en concordancia con el antecedente de la paciente. Este caso identifica una evolución atípica de carcinomas uroteliales (CU), destacando una ruta inusual de metástasis a distancia. Los CU pueden, en raras ocasiones, hacer metástasis rectales, generalmente en casos avanzados o recurrentes de la enfermedad. Al ser escasa la bibliografía disponible sobre dicho tema, cabe destacar la importancia de mantener un alto índice de sospecha en pacientes con antecedentes de carcinoma urotelial y síntomas urinarios/rectales (dolor y tenesmo rectal, dolor suprapúbico, incontinencia urinaria y fecal).

Caracterización del cáncer colorrectal en pacientes atendidos en un centro médico del caribe colombiano / Characterization of colorectal cancer in patients treated in a medicalcenter of the Colombian Caribbean

Introducción. A nivel mundial el cáncer colorrectal es la tercera causa de malignidad y la segunda causa de mortalidad por cáncer. En Colombia, tiene una prevalencia de 8,3 % dentro de las patologías neoplásicas, ubicándolo en el tercer lugar, después del cáncer de próstata y de mama, lo que lo cataloga como un problema de salud pública, por lo que es de gran importancia mantener datos actualizados acerca de su perfil epidemiológico. Métodos. Se realizó un estudio transversal en pacientes con cáncer colorrectal atendidos en el Hospital Universitario del Caribe, Cartagena, Colombia, durante el periodo 2015-2019. Se analizaron las variables sociodemográficas, clínicas, patológicas e histológicas. Resultados. Se encontraron un total de 268 pacientes atendidos por cáncer colorrectal, con predominio femenino en el (54,5 %) de los casos, y edad promedio de 62 años; con comorbilidades en 48,8 % y sintomatología de dolor abdominal en 56,7 %. El adenocarcinoma se encontró en el 82,1 % de los casos y la intervención más realizada fue la hemicolectomía derecha. Conclusión. El perfil epidemiológico del cáncer colorrectal encontrado en este estudio concuerda con los hallazgos de la literatura médica mundial, comprometiendo especialmente mujeres en nuestra institución.

Introduction. Worldwide, colorectal cancer is the third leading cause of malignancy and the second leading cause of cancer mortality. In Colombia, it has a prevalence of 8.3% within neoplastic pathologies, placing it in third place, after prostate and breast cancer, which classifies it as a public health problem, making it of great importance to maintain up-to-date data on its epidemiological profile. Methods. A cross-sectional study was carried out in patients with colorectal cancer treated at the Hospital Universitario del Caribe, Cartagena, Colombia, during the period 2015-2019. Sociodemographic, clinical, pathological and histological variables were analyzed. Results. A total of 268 patients treated for colorectal cancer were found, with a female predominance of 54.5% and an average age of 62 years; comorbidities in 48.8%, and symptoms of abdominal pain in 56.7%. Adenocarcinoma was found in 82.1% of cases and the most performed intervention was right hemicolectomy. Conclusion. The epidemiological profile of colorectal cancer found in this study is consistent with the findings of the world medical literature, especially involving women in our institution.

Trauma de recto penetrante: revisión de tema / Penetrating rectal trauma: a comprehensive review

Introducción. En la actualidad, el trauma de recto continúa siendo una situación clínica compleja y temida por ser potencialmente mortal. Su detección y manejo temprano es la piedra angular para impactar tanto en la mortalidad como en la morbilidad de los pacientes. Hoy en día, aún existe debate sobre la aproximación quirúrgica ideal en el trauma de recto y las decisiones de manejo intraoperatorias se ven enormemente afectadas por la experiencia y preferencias del cirujano. Métodos. Se realizó una búsqueda de la literatura en las bases de datos de PubMed, Clinical Key, Google Scholar y SciELO utilizando las palabras claves descritas y se seleccionaron los artículos más relevantes publicados en los últimos 20 años; se tuvieron en cuenta los artículos escritos en inglés y español. Discusión. El recto es el órgano menos frecuentemente lesionado en trauma, sin embargo, las implicaciones clínicas que conlleva pasar por alto este tipo de lesiones pueden ser devastadoras para el paciente. Las opciones para el diagnóstico incluyen el tacto rectal, la tomografía computarizada y la rectosigmoidoscopía. El manejo quirúrgico va a depender de la localización, el grado de la lesión y las lesiones asociadas. Conclusión. El conocimiento de la anatomía, el mecanismo de trauma y las lesiones asociadas permitirán al cirujano realizar una aproximación clínico-quirúrgica adecuada que lleve a desenlaces clínicos óptimos de los pacientes que se presentan con trauma de recto.

Introduction. Currently, rectal trauma continues to be a complex clinical and potentially fatal situation. Its early detection and management is the cornerstone to avoid both mortality and morbidity of patients. Today there is still debate about the ideal surgical approach in rectal trauma, and intraoperative management decisions are greatly affected by the experience and preferences of the surgeon. Methods. A literature search was performed in the PubMed, Clinical Key, Google Scholar and SciELO databases using the keywords described. The most relevant articles published in the last 20 years were selected. Articles written in English and Spanish were considered.Discussion. The rectum is the organ less frequently injured in trauma; however, the clinical implications of overlooking this injury can be devastating for the patient. Options for diagnosis include digital rectal examination, computed tomography and rectosigmoidoscopy. Surgical management will depend on the location, degree of the injury and the associated injuries. Conclusion. Knowledge of the anatomy, the mechanism of trauma and the associated injuries will allow the surgeon to make an adequate clinical-surgical approach that leads to optimal clinical outcomes in patients presenting with rectal trauma.

Metástasis rectal de carcinoma urotelial de vejiga resecado / Rectal metastasis of a resected urothelial bladder cancer

Resumen Se presenta el caso de una paciente con antecedentes de carcinoma urotelial de vejiga de alto grado con compromiso secundario ganglionar y óseo, la cual presentó cuadro de hematoquecia, tenesmo y dolor rectal un año después de su cirugía oncológica. La resonancia magnética de abdomen y pelvis, demos tró una lesión sólida rectal de 5 cm de longitud que estenosaba la luz y atravesaba el peritoneo, a 6 cm del margen anal. La anatomía patológica de dicha lesión, informó una metástasis urotelial a nivel del recto inferior en concordancia con el antecedente de la paciente. Este caso identifica una evolución atípica de carcinomas uroteliales (CU), destacando una ruta inusual de metástasis a distancia. Los CU pueden, en raras ocasiones, hacer metástasis rectales, generalmente en casos avanzados o recurrentes de la enfermedad. Al ser escasa la bibliografía disponible sobre dicho tema, cabe destacar la importancia de mantener un alto índice de sospecha en pacientes con antecedentes de carcinoma urotelial y síntomas urinarios/rectales (dolor y tenesmo rectal, dolor suprapúbico, incontinencia urinaria y fecal).

Abstract We present the case of a female patient with a history of high-grade urothelial carcinoma of the bladder with secondary lymph node and bone involvement, who presented with hematochezia, tenesmus and rectal pain one year after her oncological surgery. The abdomen and pelvis magnetic resonance image showed a 5 cm solid rectal lesion that stenosed the lumen and crossed the peritoneum, 6 cm away from the anal margin. The histology of this lesion reported an urothelial metastasis at the level of the lower rectum according to the patient's history. This case identifies an atypical evolution of urothelial carcinomas (UC), highlighting an unusual route of distant metastasis. UC can, on rare occasions, metastasize to the rectum, usually in advanced or recurrent cases of the disease. As the literature available on this topic is scarce, it is crucial to highlight the importance of maintaining high suspicion in patients with a history of urothelial carcinoma and urinary/rectal symptoms (rectal pain and urgency, suprapubic pain, urinary and fecal incontinence).