Actinomicosis de pared abdominal con infiltración hepática simulando una neoplasia maligna: reporte de un caso / Abdominal wall actinomycosis with hepatic infiltration mimicking a malignant neoplasm: case report

La infección por Actinomices (actinomicosis), es una entidad poco frecuente y que puede crear dificultades diagnósticas y terapéuticas; principalmente cuando por su presentación se asemeja a neoplasias malignas. El objetivo de este estudio fue reportar un caso de actinomicosis de pared abdominal con infiltración hepática y revisar la evidencia existente. Se trata de una paciente sexo femenino, de 33 años de edad, sin antecedentes quirúrgicos ni de utilización de dispositivos intra-uterinos. Consultó por dolor abdominal y masa palpable a nivel epigástrico. Se estudió con imágenes, las que permitieron verificar una masa de pared abdominal con trayecto fistuloso al hígado. Se realizó una exéresis amplia de la lesión antes descrita. Una vez extirpado el espécimen, se fue a estudio histopatológico, que reveló gránulos de azufre consistentes con actinomices. La paciente evolució de forma satisfactoria, sin inconvenientes. Presentamos un caso poco común de actinomicosis de pared abdominal con infiltración hepática. Cuando se encuentra una gran masa intraperitoneal, la actinomicosis debe incluirse en el proceso de diagnóstico diferencial.

Actinomyces infection (actinomycosis) may create diagnostic conflicts and be confused with malignant neoplasms, especially in the abdomen. The objective of this study was to report a case of abdominal wall actinomycosis with hepatic infiltration, and review the existing evidence. Female patient, 33 years of age, with no surgical history or use of intra-uterine devices. She consulted for abdominal pain and palpable mass at the epigastrium. It was studied with images, which allowed verifying an abdominal wall mass with hepatic fistulae. A broad extirpation of the lesion was performed. The histological study revealed sulfur granules consistent with actinomyces. The patient has evolved satisfactorily, without problems; and is currently in treatment with amoxicillin. We present an unusual case of abdominal wall actinomycosis with hepatic infiltration that resulted in a difficult diagnosis. When a large intraperitoneal mass is found, actinomycosis needs to be included as a differential diagnoses.

Pediatric abdominal non-Hodgkin's lymphoma: diagnosis through surgical and non-surgical procedures / Linfoma não Hodgkin abdominal pediátrico: diagnóstico por meio de procedimentos cirúrgicos e não cirúrgicos

Abstract Objective: To describe the success rate and the complications after procedures to diagnose abdominal non-Hodgkin's lymphoma in children and adolescents. Methods: A retrospective cross-sectional study was conducted with a population consisting of children and adolescents with abdominal non-Hodgkin's lymphoma diagnosed between September 1994 and December 2012. The sample comprised of 100 patients who underwent 113 diagnostic procedures, including urgent surgery (n = 21), elective surgery (n = 36), and non-surgical diagnosis (n = 56). Results: The most frequent procedures were laparotomy (46.9%) and ultrasound-guided core biopsy (25.6%). The rate of diagnostic success was 95.2% for urgent surgeries; 100% for elective surgeries and 82.1% for non-surgical procedures (p < 0.05). The rates of complication during the three diagnosis procedures considered were significant (p < 0.001; 95.2% of the urgent surgeries, 83.8% of the elective surgeries, and 10.7% of the non-surgical procedures). The length of time before resuming a full diet and starting chemotherapy was significantly reduced for patients who underwent non-surgical procedures when compared with the other procedures (p < 0.001). Conclusion: Non-surgical procedures for the diagnosis of pediatric abdominal non-Hodgkin's lymphoma are an effective option with low morbidity rate, allowing an earlier resumption of a full diet and chemotherapy initiation. Furthermore, non-surgical procedures should also be considered for obtaining tumor samples from patients with extensive disease.

Resumo Objetivo: Descrever a taxa de sucesso e as complicações dos procedimentos para o diagnóstico de linfoma não Hodgkin abdominal em crianças e adolescentes. Métodos: Estudo retrospectivo transversal em uma população de crianças e adolescentes com linfoma não Hodgkin abdominal diagnosticada entre setembro de 1994 e dezembro de 2012. A amostra foi composta por 100 pacientes submetidos a 113 procedimentos diagnósticos, inclusive cirurgia de urgência (n = 21), cirurgia eletiva (n = 36) e diagnóstico não cirúrgico (n = 56). Resultados: Os procedimentos mais frequentes foram laparotomia (46,9%) e biópsia guiada por ultrassonografia (25,6%). A taxa de sucesso diagnóstico foi de 95,2% para cirurgias de urgência; 100% para cirurgias eletivas e 82,1% para procedimentos não cirúrgicos (p < 0,05). Houve diferença significativa entre as taxas de complicação associadas aos três grupos (p < 0,001; 95,2% das cirurgias urgentes, 83,8% das cirurgias eletivas e 10,7% dos procedimentos não cirúrgicos). O tempo decorrido até o reinício da dieta plena e o início a quimioterapia foi significativamente reduzido para os pacientes submetidos a procedimentos não cirúrgicos quando comparados com os outros procedimentos (p < 0,001). Conclusão: Os procedimentos não cirúrgicos para o diagnóstico do linfoma não Hodgkin abdominal pediátrico são uma opção efetiva com baixa taxa de morbidade, permitem uma retomada mais precoce de uma dieta plena e início de quimioterapia. Em pacientes com doença extensa, os procedimentos não cirúrgicos também devem ser considerados para a obtenção de amostras tumorais.

Hepatic fascioliasis in Mashhad, Northeast Iran: first report

Abstract Fascioliasis is a zoonotic disease caused by a leaf-like worm (fluke) called Fasciola. Herein, we present a case of human hepatic fascioliasis. A 57-year-old man was referred to the hospital for ambiguous gastrointestinal symptoms with suspected hemangioma. Hepatic fascioliasis was diagnosed using abdominal computed tomography and serology. He tested positive for the IgG antibody against Fasciola hepatica. The patient was treated successfully with triclabendazole. This is the first published report on the occurrence of fascioliasis in Northeast Iran, a non-endemic area for fascioliasis. Our results suggest the emergence of a new focus in the region.

An unusual abdominal wall mass in a child

ABSTRACT Abdominal tumors are one of the most common types of pediatric cancer. Therefore, they should always be included in the differential diagnosis of abdominal masses. Here, we present the case of a child whose initial hypothesis of diagnosis contemplated this possibility. Later, it was demonstrated that the abdominal mass found was secondary to a common parasitosis. A 2-year old, moderately malnourished and pale white boy was referred with a history of a rapidly growing, well-limited, middle abdominal mass. The mass was 10 by 3 cm, hard and poorly movable, apparently involving both abdominal rectus muscles. A complete resection was performed, revealing an abdominal wall abscess, with intense eosinophilic proliferation, secondary to a local and intense reaction to innumerous Ascaris lumbricoides eggs. Extra luminal infestations with Ascaris, that usually form peritoneal granulomas have been previously described. However, neither external trauma nor fistula, that could explain the superficial presence of the eggs, was found. This description reinforces the relevance of infectious diseases within the differential diagnosis of abdominal masses, particularly in areas with high prevalence of parasitic infestations.

Tumor del estroma gastrointestinal de localización gástrica. Presentación de un caso / Gastrointestinal stromal tumor of gastric location. Case presentation

Los tumores estromales gastrointestinales son neoplasias que se originan en el tejido mesenquimal de la pared del tracto gastrointestinal. Se ha postulado que las células que originan estos tumores son las células intersticiales de Cajal, las cuales constituyen el marcapaso del tracto digestivo, se hallan en el plexo mientérico de Auerbach y responden al oncogén CD117, c-KIT. Pueden presentarse a cualquier edad pero tienen un pico de incidencia durante la sexta década de la vida. La localización más frecuente es en estómago. Tienen variedad de tamaños desde pocos milímetros hasta 20 cm o más. En este trabajo se presenta un paciente de 56 años de edad que fue ingresado en el centro hospitalario del territorio de Colón por presentar un cuadro de sangrado digestivo alto en forma de melena. Se le realizaron exámenes de laboratorio, estudios imagenológicos (Rx contrastado de estómago-duodeno, ultrasonido y TAC abdominal) y endoscopia digestiva superior. Se comprobó la presencia de una tumoración polipoide de 5 cm de diámetro en la región prepilórica gástrica. Fue sometido a operación quirúrgica y los resultados definitivos de Anatomía Patológica arrojaron un tumor del estroma gastrointestinal de bajo grado de malignidad (AU).

Gastrointestinal stromal tumors are neoplasias originated in the mesenchymal tissue of the gastrointestinal tract wall. It has been stated that cells originating these tumors are the Cajal´s interstitial cells, the digestive tract pacemaker, that are located in he Auerbach´s myoenteric plexus and answer to CD117, c-KIT oncogen. They may occur at any age but have an incidence peak during the sixth decade of life. The most common location is the stomach. There is a variety of sizes, from few millimeters to 20 cm or more. The case of a 56-years-old patient is presented in this work; he was admitted in the territorial hospital of Colon for presenting a high digestive bleeding in a melena form. Laboratory tests, imagine studies (contrasted Rx of stomach and duodena, abdominal ultrasound and CAT) and high digestive endoscopy were made. It was proved the presence of a 5 cm polypoid tumor in the gastric pre-pyloric region. It was surgically operated and the final results of Pathologic Anatomy showed a gastrointestinal stromal tumor of low level malignancy (AU).

Estudio de una masa abdominal en pediatría: revisión de la literatura / Study of an abdominal mass in pediatrics: review of the literature

Alrededor del 20 por ciento de los tumores diagnosticados en pediatría corresponden a masas intraabdominales y de ellos, el 20 por ciento son tumores malignos, por lo que un alto índice de sospecha asociado a un diagnóstico precoz pueden incidir positivamente en el pronóstico de los pacientes. El objetivo de este trabajo fue realizar una revisión actualizada de la literatura disponible sobre el estudio de una masa abdominal en pediatría, enfocado principalmente en la epidemiología y orientación diagnóstica que debería seguir el médico al enfrentarse a un paciente con este hallazgo. La forma de presentación clínica de una masa abdominal es variable. En un número importante de pacientes será de forma asintomática, lo que dificulta el diagnóstico precoz, por lo que es necesario mantener un alto índice de sospecha frente esta patología. Como herramientas para la evaluación de una masa abdominal contamos cada vez más con exámenes radiológicos, marcadores tumorales e histología, sin embargo, los exámenes deben realizarse orientados a comprobar la sospecha diagnóstica que obtengamos de una completa anamnesis y examen físico.

About 20 percent of the tumors diagnosed in pediatric patients correspond to intraabdominal masses. These can correspond to both benign and malignant pathology. Moreover, 20 percent of solid malignant tumors are located in the abdomen, so a high index of suspicion associated with an early diagnosis can positively affect the prognosis of these patients. The clinical presentation of an abdominal mass is variable. A significant number of patients will be asymptomatic, which makes early diagnosis difficult. This is why it is necessary to maintain a high index of suspicion in this pathology. As tools for the evaluation of an abdominal mass, we are increasingly counting on radiological examinations, tumor markers and histology. However, the examinations must be carried out in order to verify the diagnostic suspicion that we obtain from a complete anamnesis and physical examination. The objective of this work was to perform an updated review of the available literature on the study of abdominal mass in pediatrics, focused mainly on the epidemiology and diagnostic orientation that should be followed by the physician when confronting a patient with this finding.

Caracterización de las lesiones intraabdominales mediante la secuencia de difusión por resonancia magnética en el Hospital Nacional Dos de Mayo, Agosto 2011 - Diciembre 2012. Lima - Perú / Characterization of intra-abdominal lesions using diffusion sequence for magnetic resonance imaging at the National Hospital Dos de Mayo, August 2011 - December 2012. Lima - Peru

Objetivo: Describir las características radiológicas de la secuencia de difusión y mapa de ADC y las secuencias de RM convencional, en la diferenciación de la patología abdominal benigna y maligna. Material y métodos: Estudio descriptivo, transversal y retrospectivo. Se revisaron las imágenes de Resonancia Magnética (RM) e historias clínicas de 276 pacientes durante el periodo de Agosto 2011 a Diciembre 2012 en el departamento de Radiodiagnóstico del H.N. Dos de Mayo incluyéndose a 211 pacientes. Los estudios de imágenes se realizaron en un equipo Phillips Achieva 3 Teslas. Los hallazgos fueron correlacionados mediante estudio histopatológico, o demostrando su concordancia entre los diferentes métodos diagnósticos, evolución clínica y su estabilidad en el tiempo. Resultados: Se estudiaron 83 pacientes hombres (39.3 por ciento) y 128 mujeres (60.7 por ciento) con edades entre los 9 y 91 años. El 25.2 por ciento de las lesiones fueron malignas, de las cuales el mayor porcentaje se encontraba en los grupos de edades mayores a los 50 años. El 91 por ciento de lesiones malignas mostraron restricción de la señal al analizar las secuencias de difusión y ADC, así mismo el 89 por ciento de las lesiones benignas no mostraron restricción a la difusión y ADC. El 30.9 por ciento de las lesiones se hallaron en el hígado de las cuales el 24.7 por ciento fueron malignas y en un 100 por ciento mostraron restricción de la señal, seguida del colédoco en frecuencia (24.2 por ciento) de las cuales el 21.5 por ciento fueron malignas y el 73 por ciento mostro restricción de la señal en la difusión. Conclusiones: La secuencia de Difusión por RM es una técnica que mejora la caracterización de los tejidos cuando los resultados se interpretan con cautela, comparándola con otras secuencias de RM convencional e información clínica.

Objective: The purpose of this article is to describe the radiological characteristics of Diffusion-weighted Magnetic Resonance Imaging and ADC in the differentiation of benign and malignant abdominal pathology. Materials and Methods: A descriptive, retrospective and cross study. We reviewed the magnetic resonance images (MRI) and clinical records of 276 patients during the period August 2011 to December 2012 in the Department of Radiology of H.N. Dos de Mayo including 211 patients. Imaging studies were performed on a Philips Achieva 3 Tesla scanner. The findings were correlated with histopathology, or demonstrating concordance between different diagnostic methods, clinical course and its stability over time. Results: We studied 83 male patients (39. 3 per cent) and 128 women (60.7 per cent) aged between 9 and 91 years old. The 25.2 per cent of the lesions were malignant, of which the highest percentage was in the age groups older than 50 years. 91 per cent of malignant lesions showed restriction in signal Diffusion-weighted imaging and ADC, also 82 per cent of the benign lesions didn't show restriction in Diffusion-weighted imaging and ADC. The 30.9 per cent of the lesions were found in the liver of which 24.7 per cent were malignant and 100 per cent showed restriction of the signal, often followed by bile duct (24.2 per cent) of which 21.5 per cent were malignant and 73 per cent showed restriction signal. Conclusion: Diffusion-weighted Magnetic Resonance Imaging is a technique that improves tissue characterization when the results are interpreted with caution, compared to other conventional MR sequences and clinical information.

Intra-abdominal desmoplastic small round cell tumor in a 45-year-old man: a case report

Intra-abdominal desmoplastic small round cell tumor is a rare entity with a few reports worldwide. This tumor commonly occurs in children and adolescent and occurrence in adult age group is very rare. Here, we describe an adult male with symptoms of intestinal obstruction due to abdominal mass, located in splenic flexure. After resection, the diagnosis of intra-abdominal desmoplastic small round cell tumor was established by pathologic and immunohistochemical studies. We emphasize that albeit being rare, this tumor should be mentioned as one of the differential diagnoses of widespread intra-abdominal lesions in any age group. A brief review of epidemiology, clinical manifestations as well as pathological and molecular features is also included in the paper.

Transformation of Castleman's Disease into Follicular Dendritic Cell Sarcoma, Presenting as an Asymptomatic Intra-abdominal Mass / 대한소화기학회지

Follicular dendritic cell (FDC) sarcoma is an extremely rare malignant neoplasm arising from FDCs. The exact origin of FDCs remains unclear; both a hematopoietic lineage origin and a stromal cell derivation have been proposed. Proliferation of FDCs can lead to benign reactive lesions or generate neoplastic conditions. The lesions are most commonly found in lymph nodes and usually involve the head and neck area. Castleman's disease is a rare non-neoplasitic lymphoproliferative disorder. Rare cases of hyaline-vascular Castleman's disease have been associated with FDC sarcoma, but a clonal relationship has not been convincingly demonstrated. A pathway toward tumor evolution, beginning with hyperplasia and dysplasia of FDCs, has been proposed. Despite this known association between Castleman's disease and FDC sarcoma, there have only been few reported cases of sarcoma arising as a complication of pre-existing Castleman's disease, especially in abdominal lesions. We describe here a 51-year-old female with an FDC sarcoma arising from unicentric, hyaline-vascular type Castleman's disease in an intra-abdominal mass. Pathologically, the lesion showed a series of changes during the process of transformation from Castleman's disease to FDC sarcoma.

Linfangioma abdominal: caso clínico / Abdominal lymphangioma: clinical case

Abdominal lymphangioma is a rare benign congenital malformation of the mesenteric and/or retroperitoneal lymphatics, more frequent in pediatrics. Objective: To report a case with unusual clinical presentation of lymphangioma. Clinical Case: A two-year old boy previously health who presented with abdominal pain, lipothymia, and generalized pallor ensuing an abdominal massage. Abnormal findings included an abdominal mass and Ht of 17.3 percent. Sonogram showed a large retroperitoneal mass with anechogenic areas and vasculari-zed septi. CT scans showed similar results. Surgical removal and biopsy confirmed the diagnosis. Discusion: Abdominal lymphangioma is uncommon in children, presentation varies from asymptomatic to acute abdomen. Images are essential in diagnosis and pre-op studies.

El linfangioma abdominal es una patología poco frecuente, benigna que corresponde a una malformación congénita del desarrollo linfático mesentérico y/o retroperitoneal. Es más frecuente en población infantil. Objetivo: Reportar un caso con presentación atípica de linfangioma. Caso clínico: Paciente de 2 años varón, previamente sano, que se presenta con dolor abdominal, luego lipotimia y palidez generalizada tras recibir un masaje abdominal. Al examen físico se encontró una masa abdominal, sin hepatomegalia, esplenomegalia ni adenopatías palpables. Presentaba un hematocrito de 17,3 por ciento. La Ecografía mostró una gran masa retrope-ritoneal con áreas anecogénicas y septos vascularizados. La TAC mostró hallazgos similares: masa quísti-ca, lobulada probablemente determinada por linfangioma abdominal. Se realizó extirpación quirúrgica y la biopsia confirma el diagnóstico. Discusión: El linfangioma abdominal es una patología infrecuente en niños. La presentación clínica es variable, puede ser desde asintomático hasta presentarse con abdomen agudo. Se requiere estudio imagenológico para su evaluación preoperatoria. La ecografía y TAC tienen un importante rol diagnóstico, en localización, tamaño, anatomía circundante y posibles complicaciones.

Tumor miofibroblastico inflamatorio: presentación de dos casos pediátricos / Inflammatory myofibroblastic tumor: presentatiom of two pediatric cases

El tumor miofibroblástico inflamatorio tiene un comportamiento predominantemente benigno pero en ocasiones puede mostrar grados variables de agresividad. Se localiza en diferentes órganos, el pulmón es el sitio más frecuente, seguido por la cavidad abdominal. Se presentan 2 casos con tumor miofibroblástico inflamatorio. Caso N° 1 femenino de 5 años con palidez cutáneo mucosa, hiporexia, dolor abdominal, fiebre, soplo cardíaco y hepatoesplenomegalia. Ultrasonido, tomografía y estudio radiológico contrastado: tumor en cuerpo gástrico con engrosamiento de sus paredes sugestivo de enfermedad linfoproliferativa. Estudio endoscópico: lesión verrugosa, en curvatura mayor y cuerpo alto. Biopsia: no concluyente. Caso N° 2 femenino de 14 años con estreñimiento agudo, dolor abdominal, masa palpable en mesogastrio e hipogastrio. Ultrasonido y tomografía: lesión ocupante de espacio en mesenterio, quística. Las dos pacientes presentaron anemia severa, leucocitosis y trombocitosis. Se realizó laparotomía exploradora en ambas, caso N° 1: tumor sólido en curvatura mayor gástrica, se hizo resección completa mediante gastrectomía parcial. Caso N° 2: tumor que surge del mesocolon transverso, quístico, ocupando todo el abdomen, 90% fue resecado. Diagnosticó histopatológico: tumor miofibroblástico inflamatorio. Evolución satisfactoria en ambos casos. Esta neoplasia debe sospecharse en niños para evitar terapias radicales, la cirugía conservadora es suficiente como tratamiento en la mayoría de los casos

The inflammatory myofibroblastic tumor behaves predominantly benign but can sometimes show varying degrees of aggressiveness. It is located in different organs, the lung is the most frequent, followed by the abdominal cavity. We present 2 cases of inflammatory myofibroblastic tumor. Case No. 1 female 5 years old with pale skin mucosa, anorexia, abdominal pain, fever, heart murmur, and hepatosplenomegaly. Ultrasound, CT and contrast radiological study: tumor in the stomach with thickening of their walls suggestive of lymphoproliferative disease. Endoscopic Study: warty lesion on greater curvature and high body. Biopsy inconclusive. Case No. 2 female 14 years with severe constipation, dominal pain, palpable mass in mesogastrium and hypogastric. Ultrasound and CT: space-occupying lesion in the mesentery, cystic. The two patients had severe anemia, leukocytosis and thrombocytosis. Laparotomy was performed in both Case No. 1: solid tumor greater curvature gastric resection was completed by partial gastrectomy. Case No. 2: tumor that arises from the transverse mesocolon, cystic, occupying the entire abdomen, 90% were resected. Pathological diagnosis: inflammatory myofibroblastic tumor. Satisfactory in both cases. This neoplasm should be suspected in children to prevent radical therapies, surgery, conservative treatment is sufficient in most cases

Estenosis vaginal post-radioterapia en cáncer de cervix en el Instituto Dr. Heriberto Pieter de Santo Domingo. Período enero 2006-enero 2007 / Vaginal stenosis post-radiotherapy for cervical cancer in Dr. Heriberto Pieter Institute of Santo Domingo. Period January 2006-January 2007

Los departamentos de ginecología oncológica y educación al usuario encontró una incidencia de cáncer de cérvix en un período de un año de un 30.2% del total de las pacientes que acuden a la institución, de los cuales el 45% estaba entre los 30-49 años de edad al momento del diagnóstico. Como parte de su tratamiento los pacientes recibieron radioterapia externa y braquiterapia por encontrarse en un estadio avanzado y presentar estenosis vaginal como uno de los efectos secundarios más conocidos...

Malignant Mesothelioma Presenting as a Giant Chest, Abdominal and Pelvic Wall Mass

Malignant mesothelioma (MM) is a relatively rare carcinoma of the mesothelial cells, and it is usually located in the pleural or peritoneal cavity. Here we report on a unique case of MM that developed in the chest, abdominal and pelvic walls in a 77-year-old female patient. CT and MRI revealed mesothelioma that manifested as a giant mass in the right flank and bilateral pelvic walls. The diagnosis was confirmed by the pathology and immunohistochemistry. Though rare, accurate investigation of the radiological features of a body wall MM may help make an exact diagnosis.

Tumor desmoplásico de pequenas células redondas abdominal da infância: relato de caso / Abdominal desmoplastic small round cell tumor of childhood: case report

O tumor desmoplásico de pequenas células redondas (TDPCR) é uma neoplasia rara e altamente agressiva, que afeta predominantemente jovens do sexo masculino. Relata-se um caso de TDPCR em um paciente do sexo masculino, de 11 anos, com acometimento intra-abdominal marcado por volumosa massa retroperitoneal em hipocôndrio esquerdo. O estudo histológico da massa revelou presença de blocos de pequenas células tumorais redondas e azuis, envoltas por estroma desmoplásico; a análise imuno-histoquímica evidenciou positividade para desmina, WT-1 e citoceratinas. Após o diagnóstico, o paciente foi submetido a tratamento quimiorradioterápico, tendo evoluído a óbito durante o 24º mês de acompanhamento.

Desmoplastic small round cell tumor (DSRCT) is a rare and highly aggressive neoplasm, which predominantly affects young males. We report a case of DSRCT affecting an 11-year-old male patient, with intra-abdominal involvement characterized by a large retroperitoneal mass in left hypochondrium. Histological examination of the mass showed the presence of clusters of small blue round tumor cells surrounded by a dense desmoplastic stroma. Immunohistochemical analysis disclosed a positive reaction to desmin, WT-1 and cytokeratins. After diagnosis, the patient underwent chemo radiotherapy treatment, but died at the 24th month of follow-up.

Mesothelial Cyst of the Round Ligament Mimicking a Metastasis: a Case Report

A mesothelial cyst of the round ligament is a rare cause of an inguinal mass. Clinically, it is frequently misdiagnosed as one of commoner diseases such as an inguinal hernia, femoral hernia, lipoma, and lymphadenopathy upon physical examination. Some previous reports elaborated the sonographic features of a mesothelial cyst of the round ligament. However, to our knowledge, few reports have described the CT features of a mesothelial cyst. We illustrated here the sonographic and multidetector CT features of a case of a mesothelial cyst of the round ligament that presented as an inguinal palpable mass and mimicked a metastasis in a patient with a Sertoli-Leydig cell tumor of the ovary.

Masa abdomino pélvica gigante: reporte de un caso / Abdomino pelvic mass giant: a case report

Los tumores benignos de ovario son mas comunes en pacientes jóvenes en edad reproductiva a diferencia de la mayor parte de las neoplasias malignas de ovario que se presentan en pacientes de mas edad. Las masas anexiales benignas son unilaterales, pueden llegar a alcanzar grandes tamaños y generan poca sintomatología a las pacientes...