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1.
Arq. bras. med. vet. zootec. (Online) ; 73(3): 653-657, May-June 2021. ilus
Article in English | ID: biblio-1278359

ABSTRACT

Squamous metaplasia of the rete ovarii is an ovarian pathologic change characterized by replacement of the normal single layered cuboidal epithelium of the rete ovarii by a stratified squamous keratinized epithelium. Uterus and ovaries from a local slaughterhouse pregnant crossbreed cow were evaluated through ultrasound, macroscopically and histologically. Grossly, there were multiple cysts in both ovaries, which were histologically characterized as rete ovarii cysts with squamous metaplasia and intraluminal accumulation of keratinized material. Squamous metaplasia of the rete ovarii has been previously reported in cows, however this is the first report of this condition in a pregnant animal, demonstrating that this ovarian change is compatible with pregnancy.(AU)


A metaplasia escamosa da rete ovarii é uma patologia ovariana caracterizada pela substituição do epitélio simples cuboidal normal da rete ovarii por um epitélio estratificado escamoso queratinizado. Útero e ovários de uma vaca mestiça gestante, proveniente de abatedouro, foram avaliados por ultrassonografia, macroscopia e histologia. Verificaram-se vários cistos em ambos os ovários, histologicamente caracterizados como cistos de rete ovarii com metaplasia escamosa, com acúmulo intraluminal de material queratinizado. Metaplasia escamosa da rete ovarii foi relatada anteriormente em vacas, porém este é o primeiro relato em que essa alteração ovariana é compatível com manutenção da ciclicidde ovariana e gestação na vaca.(AU)


Subject(s)
Animals , Female , Pregnancy , Cattle , Ovary/pathology , Teratoma/veterinary , Pregnancy, Animal/physiology , Estrous Cycle/physiology , Epidermal Cyst/veterinary , Epithelium/pathology , Metaplasia/veterinary
2.
Arch. argent. pediatr ; 119(5): e499-e503, oct. 2021. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1292670

ABSTRACT

Gracias al avance de la tecnología, es posible realizar el diagnóstico prenatal de distintas malformaciones congénitas que ponen en riesgo la vida del recién nacido. Entre estas, el teratoma oral o epignathus es una forma poco frecuente de teratoma congénito entre los que se localizan en cabeza y cuello. Suelen ser benignos y abarcan el 4 % de los teratomas neonatales.A partir del desarrollo de la técnica de tratamiento intraparto extraútero (EXIT, por su sigla en inglés), que se implementó en los años 90 para mantener la circulación fetal hasta asegurar la vía aérea del recién nacido, se logra planificar una estrategia de manejo multidisciplinario que permite el abordaje correcto de estas patologías. Se presenta un caso de teratoma oral gigante en una paciente de sexo femenino de 35 semanas de gestación, en quien se aplicó la técnica EXIT, y su evolución posterior.


Thanks to technological advances, it has been possible to carry out the prenatal diagnosis of different life-threatening congenital malformations. Among these, oral teratoma, or epignathus, is a rare form of congenital teratoma within those located in the head and neck. They are generally benign and comprise 4 % of neonatal teratomas. From the development of the EXIT technique (ex utero intrapartum treatment), which has been implemented since the 90's to support fetal circulation until the newborn's airway is secured, it is possible to plan a multidisciplinary management strategy that enables the correct approach of these pathologies.We present a case of giant epignathus in a 35-week gestation female patient, whose airway was secured using the EXIT technique, and follow up.


Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Teratoma , Airway Obstruction , Prenatal Diagnosis , Cesarean Section , Ultrasonography, Prenatal , Gestational Age
3.
Autops. Case Rep ; 11: e2021249, 2021. graf
Article in English | LILACS | ID: biblio-1153185

ABSTRACT

Collision tumors have been reported in various organs like the gastrointestinal tract, lung, skin, adrenals, central nervous system, lymph nodes, uterus, but are rarely seen in the ovary. Collision tumors are two histologically distinct neoplasms in the same organ without any intermixture between them. Here we present a case of a collision tumor of the ovary represented by a mucinous cystadenoma and teratoma. It is imperative for a surgical pathologist to correctly diagnose the collision tumor components and differentiate them from mixed tumors as it will dictate the appropriate treatment based on the individual biological aggressiveness of each component.


Subject(s)
Humans , Female , Adult , Teratoma/pathology , Cystadenoma, Mucinous/pathology , Ovarian Neoplasms/complications , Diagnosis, Differential
4.
Autops. Case Rep ; 11: e2021287, 2021. tab, graf
Article in English | LILACS | ID: biblio-1249022

ABSTRACT

The sacrococcygeal region is the most common site for the extragonadal germ cell tumors comprising seminomatous and non-seminomatous tumors. Seminomatous tumors are seminomas, and non-seminomatous tumors comprise mainly teratoma (mature and immature), yolk sac tumor (YST), embryonal carcinoma (EC), and choriocarcinoma. These tumors occur in newborns, infants, and adolescents. Other common sites for extragonadal germ cell tumors are the brain and mediastinum, although they may occur anywhere in the body. These tumors may occur in mixed as well as pure form. So, sectioning from different areas should be done before labeling them as pure germ cell tumors. YST, in its pure form, is rare and therefore should not be missed as it is chemosensitive. The patient should be thoroughly assessed clinically. Imaging also becomes necessary while evaluating swelling in the sacrococcygeal region and can aid in differentials. When the clinical and imaging suspicion of either Sacrococcygeal teratoma or other germ cell tumor is high, serum biomarkers as alfa-fetoprotein should be requested. The serum levels are necessary and should be done preoperatively, postoperatively, and during the course of chemotherapy as follow-up. However, the final diagnosis rests on the histopathological diagnosis. We report one such case of pure YST in the sacrococcygeal region in a 9-month-old female child. The imaging suggested sacrococcygeal teratoma type 4, and high alfa-fetoprotein levels were determined postoperatively.


Subject(s)
Humans , Female , Infant , Sacrococcygeal Region/pathology , Teratoma/pathology
5.
Rev. cuba. cir ; 59(3): e975, jul.-set. 2020. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1144432

ABSTRACT

RESUMEN Introducción: Los teratomas se definen como tumores de tejidos extraños al órgano o sitio anatómico en el cual se originan. Los teratomas mediastinales no son frecuentes, representan alrededor del 5 por ciento al 10 por ciento de todos los tumores mediastinales. Objetivo: Describir los resultados del tratamiento quirúrgico de pacientes con diagnóstico de teratomas mediastinales. Métodos: Se estudiaron 12 pacientes tratados entre enero de 2001 y diciembre de 2018. Las variables evaluadas fueron sexo, edad, tipo histológico: maduro o inmaduro, vía de acceso quirúrgico, accidentes quirúrgicos y evolución postoperatoria. Resultados: Correspondieron 9 al sexo femenino y 3 al masculino. El promedio de edad fue de 33,3 años (17-60 años). Hubo predominio absoluto del tipo maduro (11). La esternotomía media fue el acceso más frecuente. La toracotomía se realizó cuando el tumor, voluminoso, ocupaba la mayor parte de un hemitórax. Los accidentes quirúrgicos fueron un desgarro pulmonar y una apertura del pericardio. De dos pacientes tratados mediante cirugía torácica videoasistida, uno fue convertido por sangrado venoso molesto. Al año de seguimiento todos estaban vivos, sin evidencias de recidiva. Conclusiones: Contrariamente a lo esperado, hay predominio del sexo femenino, mientras que la edad y el tipo histológico coinciden con la literatura. La esternotomía, aún hoy, es comúnmente aceptada, a pesar del auge de la cirugía torácica videoasistida. La resección total produce resultados excelentes para los teratomas benignos(AU)


ABSTRACT Introduction: Teratomas are defined as tumors of tissues foreign to the organ or anatomical site in which they originate. Mediastinal teratomas are rare, accounting for about 5-10 percent of all mediastinal tumors. Objective: To describe the outcomes of the surgical treatment of patients diagnosed with mediastinal teratomas. Methods: Twelve patients treated between January 2001 and December 2018 were studied. The variables evaluated were sex, age, histological type (mature or immature), surgical access route, surgical accidents, and postoperative evolution. Results: Nine patients corresponded to the female sex and three, to the male. The average age was 33.3 years (17-60 years). There was an absolute predominance of the mature type (11). Median sternotomy was the most frequent access. Thoracotomy was performed when the bulky tumor occupied most of a hemithorax. The surgical accidents were lung tear and opening of the pericardium. Of two patients treated by video-assisted thoracic surgery, one was converted for bothersome venous bleeding. At one year of follow-up, all were alive, with no evidence of recurrence. Conclusions: Contrary to expectations, there is predominance of the female sex, while age and histological type coincide with the literature. Sternotomy, even today, is commonly accepted, despite the rise of video-assisted thoracic surgery. Total resection produces excellent outcomes in benign teratomas(AU)


Subject(s)
Humans , Male , Female , Adult , Teratoma/diagnosis , Thoracotomy/methods , Thoracic Surgery, Video-Assisted/methods , Sternotomy/methods , Retrospective Studies
6.
Arq. bras. med. vet. zootec. (Online) ; 72(1): 115-118, Jan.-Feb. 2020. tab, ilus
Article in English | ID: biblio-1088919

ABSTRACT

Teratomas are neoplasms thought to arise from germ cells which usually occur within gonads and are rarely described on extragonadal sites. The present study reports a case of a 15 year old female mongrel dog with a lumbosacral tumor. The tumor was microscopically composed of embryonic tissues with areas containing atypical undifferentiated cells, leading to the diagnosis of a malignant teratoma. Malignant teratomas are uncommon tumors in domestic animals.(AU)


Os teratomas são neoplasias originárias das células germinativas que têm como sítio principal as gônadas; raramente ocorrem em sítios extragonodais. O presente estudo relata um caso de uma cadela de 15 anos de idade, sem raça definida, apresentando aumento de volume na região lombossacral que ao exame microscópico revelou neoformação composta por tecidos de origem embrionária, com áreas indiferenciadas exibindo atipia celular, características compatíveis com teratoma maligno. Teratomas malignos são incomuns em animais domésticos.(AU)


Subject(s)
Animals , Female , Dogs , Teratoma/veterinary , Neoplasms, Germ Cell and Embryonal/veterinary , Lumbosacral Region
7.
Article in English | WPRIM | ID: wpr-876613

ABSTRACT

@#Growing teratoma syndrome is a rare phenomenon. Presented is a case of a 36 year old, G2P2 (2002) who consulted for abdominal enlargement and subsequently underwent exploratory laparotomy, peritoneal fluid cytology, left salpingooophorectomy, right oophorocystectomy, infracolic omentectomy and random peritoneal biopsy. Histopathology revealed immature teratoma of the ovary, FIGO grade III, stage IIIC. She received adjuvant chemotherapy using Bleomycin, Etoposide, Cisplatin. After the second cycle of chemotherapy, new lesions were appreciated in the right ovary and at the cul de sac for which she underwent exploratory laparotomy, peritoneal fluid cytology, total hysterectomy with right salpingooophorectomy, tumor debulking, infragastric omentectomy, random peritoneal biopsy. Histopathologic study showed mature teratoma. No further treatment was given. Presently, patient has no evidence of disease for 5 months.


Subject(s)
Teratoma , Ovarian Neoplasms , Syndrome
8.
Rev. colomb. cir ; 35(4): 689-694, 2020. fig
Article in Spanish | LILACS | ID: biblio-1147986

ABSTRACT

Introducción. Los teratomas son masas de células totipotenciales, frecuentes en los ovarios o testículos. Su localización extragonadal es rara, siendo el epiplón aún más infrecuente. Hasta la actualidad se conocen aproximadamente 34 casos similares en la literatura. Presentación del caso. Se presenta una paciente de 61 años, con dolor en hemiabdomen inferior asociado a sensación de masa, con marcadores tumorales negativos e imágenes diagnósticas que muestran una masa encapsulada y calcificación anular interna sugestiva de necrosis grasa antigua versus tumor desmoide. Por la presentación clínica y los hallazgos imagenológicos se decide llevar a laparotomía exploratoria donde se encuentra masa quística dependiente de epiplón, con material sebáceo en su interior entremezclado con pelo y fragmentos óseos, que se reseca en bloque sin complicaciones. El informe del estudio histopatológico finalmente concluyó la presencia de un teratoma quístico maduro con cambios degenerativos. Por evolución satisfactoria se da egreso hospitalario. Discusión. El teratoma quístico extragonadal del epiplón es exótico en la literatura mundial, con escasos reportes de casos. En este caso, la resección mediante laparotomía resultó exitosa y sin complicaciones. Por su baja incidencia, la laparotomía ha sido una opción válida y segura para el manejo, no obstante conocer el caso permite plantear un abordaje con técnicas mínimamente invasivas


Introduction. Teratomas are totipotential cell masses, commonly located in the ovaries or testes. Its extragonadal location is rare, in the omentum being even rarer. To date, approximately 34 similar cases are known in the literature.Case presentation. A 61-year-old female patient is presented, with pain in the lower abdomen associated with a sensation of mass, with negative tumor markers and diagnostic images that show an encapsulated mass and internal annular calcification suggestive of old fat necrosis versus desmoid tumor. Due to the clinical presentation and the imaging findings, it was decided to carry out exploratory laparotomy where a cystic mass dependent on the omentum was found, with sebaceous material intermixed with hair and bone fragments, which was resected in bloc without complications. The histopathological study report finally concluded the presence of a mature cystic teratoma with degenerative changes. Due to satisfactory evolution, he was dis-charged from hospital.Discusion. Extragonadal cystic teratoma of the omentum is exotic in the world literature, with few case reports. In this case, the laparotomy resection was successful and uncomplicated. Due to its low incidence, laparotomy has been a valid and safe option for management, although knowing the case allows us to propose an approach with minimally invasive techniques


Subject(s)
Humans , Teratoma , Omentum , Dermoid Cyst , Abdominal Neoplasms
10.
Rev. pediatr. electrón ; 16(1): 6-12, abr. 2019.
Article in Spanish | LILACS | ID: biblio-998405

ABSTRACT

Los tumores cardiacos primarios fetales representan una entidad de baja incidencia en la práctica clínica. La gran mayoría corresponde a lesiones benignas, siendo el rabdomioma el tipo más común. Si bien, es frecuente la regresión espontánea de este tipo de lesiones durante el embarazo, los tumores cardiacos fetales pueden asociarse a complicaciones como obstrucción del flujo cardíaco, insuficiencia valvular, arritmias, insuficiencia cardíaca e hidrops fetal, pudiendo conducir incluso a la muerte fetal. El mayor desarrollo de técnicas imagenológicas ha permitido un aumento en el número y precisión de los diagnósticos prenatales de tumores cardiacos, generando al mismo tiempo, nuevos desafíos y alternativas en relación al abordaje terapéutico. El objetivo del presente artículo de revisión es exponer la evidencia actual en relación al diagnóstico prenatal, manejo, complicaciones y condiciones asociadas de los tumores cardiacos fetales más frecuentes.


Fetal primary cardiac tumors represent a low incidence entity in clinical practice. The vast majority corresponds to benign lesions, with rhabdomyoma being the most common type. Although spontaneous regression of this type of lesions during pregnancy is frequent, fetal cardiac tumors can be associated with complications such as obstruction of cardiac flow, valvular insufficiency, arrhythmias, heart failure and fetal hydrops, which can even lead to fetal death. The greater development of imaging techniques has allowed an increase in the number and precision of prenatal diagnoses of cardiac tumors, generating at the same time, new challenges and alternatives in relation to the therapeutic approach. The objective of this review article is to present the current evidence regarding the prenatal diagnosis, management, complications and associated condition s of the most frequent fetal cardiac tumors.


Subject(s)
Humans , Female , Pregnancy , Fetus/diagnostic imaging , Heart Neoplasms/diagnostic imaging , Rhabdomyoma/diagnostic imaging , Teratoma/diagnostic imaging , Ultrasonography, Prenatal , Fibroma/diagnostic imaging , Heart Neoplasms/therapy , Myxoma/diagnostic imaging
11.
Medicina (B.Aires) ; 79(1): 67-70, feb. 2019. ilus
Article in Spanish | LILACS | ID: biblio-1002590

ABSTRACT

Los teratomas son tumores germinales malignos compuestos por dos o más capas de tejido, que ocasionalmente se transforman en estirpes con crecimiento agresivo. Se presenta el caso de un paciente de 29 años con un tumor germinal gonadal localizado en testículo, cuya evolución fue desfavorable por presentar transformación en un fenotipo correspondiente a un rabdomiosarcoma. La patología aquí descripta deviene del crecimiento diferencial de un componente ya existente en el tumor original o la transformación en un linaje somático que se hace dominante. Los tumores transformados como el del caso descripto son raros y presentan características diferentes de la mayoría de las neoplasias germinales respecto del comportamiento, el pronóstico y la sensibilidad a los tratamientos establecidos.


Teratomas are malign germ cell tumors composed of two or more tissue layers. When there is specific organ differentiation they are called mature teratoma. They rarely grow aggressively. We report the case of a 29 year-old man with a diagnosis of gonadal germ cell tumor whose evolution was unfavorable owing to transformation into a different phenotype corresponding to a rhabdomyosarcoma. This phenomenon occurs through differential growth of a single histological component of the original tumor or transformation of a somatic lineage that becomes dominant. Transformed tumors such as the one herein described differ from most germ cell neoplasms regarding behavior, prognosis, and susceptibility to established treatments.


Subject(s)
Humans , Male , Adult , Rhabdomyosarcoma/pathology , Teratoma/pathology , Testicular Neoplasms/pathology , Cell Transformation, Neoplastic/pathology , Neoplasms, Gonadal Tissue/pathology , Teratoma/drug therapy , Testicular Neoplasms/drug therapy , Fatal Outcome
12.
Article in English | WPRIM | ID: wpr-766286

ABSTRACT

Many neurologic disorders manifest as psychiatric symptoms. Anti-N-Methyl-D-Aspartate (NMDA) receptor encephalitis is an autoimmune disease of the brain characterized by numerous neurological and psychiatric features. Despite being rare, its prevalence is rapidly increasing and early management is critical in ensuring successful and sustainable recovery. Therefore, the illness should be considered as a differential diagnosis when clinically assessing patients. This report presents a case of a female child who was hospitalized for acute psychiatric manifestations, which was later confirmed as anti-NMDA receptor encephalitis. She recovered relatively successfully after combined neurological and psychiatric treatment. This report provides information on the clinical course of early onset anti-NMDA receptor encephalitis, including treatment strategy and prognosis.


Subject(s)
Anti-N-Methyl-D-Aspartate Receptor Encephalitis , Autoimmune Diseases , Brain , Child , Diagnosis, Differential , Encephalitis , Female , Humans , Nervous System Diseases , Prevalence , Prognosis , Psychotic Disorders , Receptors, N-Methyl-D-Aspartate , Rituximab , Teratoma
13.
Neonatal Medicine ; : 138-146, 2019.
Article in English | WPRIM | ID: wpr-760588

ABSTRACT

PURPOSE: Congenital pulmonary airway malformation (CPAM)—a rare developmental anomaly—affects the lower respiratory tract in newborns. By comparing the reliability of diagnostic tools and identifying predictive factors for symptoms, we provide comprehensive clinical data for the proper management of CPAM. METHODS: We reviewed the medical records of 66 patients with prenatally diagnosed CPAM delivered at Severance Children's Hospital between January 2005 and July 2017. RESULTS: We enrolled 33 boys and 33 girls. Their mean gestational age and birth weight were 38.8 weeks and 3,050 g, respectively. Prenatal ultrasonography and postnatal radiography, lung ultrasonography, and chest computed tomography (CT) showed inconsistent findings. Chest CT showed superior sensitivity (100%) and positive predictive value (90%). Among the 66 patients, 59 had postnatally confirmed CPAM, three had pulmonary sequestration, one had cystic teratoma, and one had a normal lung. Of the 59 patients with CPAM, 21 (35%; mean age, 23.4 months) underwent surgery, including 15 who underwent video-assisted thoracoscopy. Twenty-five and 12 patients exhibited respiratory symptoms at birth and during infancy, respectively. Apgar scores and mediastinal shift on radiography were significantly associated with respiratory symptoms at birth. However, none of the factors could predict respiratory symptoms during infancy. CONCLUSION: Radiography or ultrasonography combined with chest CT can confirm an unclear or inconsistent lesion. Apgar scores and mediastinal shift on radiography can predict respiratory symptoms at birth. However, symptoms during infancy are not associated with prenatal and postnatal factors. Chest CT combined with periodic symptom monitoring is important for diagnosing and managing patients with prenatally diagnosed CPAM and to guide appropriate timing of surgery.


Subject(s)
Birth Weight , Bronchopulmonary Sequestration , Cystic Adenomatoid Malformation of Lung, Congenital , Female , Gestational Age , Humans , Infant, Newborn , Lung , Medical Records , Parturition , Radiography , Respiratory System , Teratoma , Thoracic Surgery, Video-Assisted , Thoracoscopy , Thorax , Tomography, X-Ray Computed , Ultrasonography , Ultrasonography, Prenatal
14.
Rev. inf. cient ; 98(2): 256-262, 2019. ilus
Article in Spanish | LILACS | ID: biblio-1017009

ABSTRACT

Se presentó un paciente de 14 años con antecedentes de salud que acudió a consulta por presentar dolor torácico de 6 días de evolución sin irradiación y con ausencia de fiebre, disnea u otros síntomas. En la radiografía de tórax se observó una masa mediastinal anterior y media que se confirmó con la tomografía computarizada y donde la localización y las características imagenológicas sugirieron el diagnóstico de teratoma mediastinal. Se realizó exéresis del tumor que comprometía también parte del pericardio, confirmándose histológicamente por anatomía patológica la presencia de un teratoma quístico maduro del mediastino(AU)


A 14-year-old patient with a history of health who attended the clinic due to chest pain that lasted six days without irradiation and with absence of fever, dyspnea or other symptoms. The chest radiograph showed an anterior and middle mediastinal mass that was confirmed with computed tomography and where the location and imaginal characteristics suggested the diagnosis of mediastinal teratoma. The excision of the tumor that also compromised part of the pericardium was performed, confirming histologically by pathological anatomy the presence of a mature cystic mediastinal teratoma(AU)


Um paciente de 14 anos de idade, com histórico médico que se apresentou na clínica devido a dor torácica de seis dias de evolução sem irradiação e sem febre, dispnéia ou outros sintomas, foi apresentado. A radiografia de tórax mostrou uma massa mediastinal anterior e média que foi confirmada com tomografia computadorizada e onde a localização e características de imagem sugeriram o diagnóstico de teratoma mediastinal. O tumor foi extirpado, o que também comprometeu parte do pericárdio, e a presença de um teratoma cístico mediastinal maduro foi confirmado histologicamente por anatomia patológica(AU)


Subject(s)
Humans , Adolescent , Pericardium/anatomy & histology , Teratoma/diagnosis , Teratoma/diagnostic imaging
15.
Article in English | WPRIM | ID: wpr-763359

ABSTRACT

Malignant transformation of ovarian mature cystic teratomas is rare, and papillary thyroid cancer occurs in 0.1%–0.3% of ovarian teratomas that undergo malignant transformation. We describe a case of successful in vitro fertilization pregnancy and delivery after a fertility-sparing laparoscopic operation in a patient with papillary thyroid carcinoma arising from a mature cystic teratoma.


Subject(s)
Fertilization in Vitro , Humans , In Vitro Techniques , Pregnancy , Teratoma , Thyroid Gland , Thyroid Neoplasms
16.
Autops. Case Rep ; 8(4): e2018060, Oct.-Dec. 2018. ilus
Article in English | LILACS | ID: biblio-986611

ABSTRACT

The finding of a sebaceous carcinoma in a mature teratoma is rare in human pathology, with fewer than 10 cases currently reported in the literature. In this article, we report a case of sebaceous carcinoma in a mature teratoma of the ovary in a 59-year-old patient and discuss its histological findings.


Subject(s)
Humans , Female , Middle Aged , Ovarian Neoplasms/pathology , Sebaceous Gland Neoplasms/pathology , Adenocarcinoma, Sebaceous/pathology , Teratoma/pathology
18.
Rev. chil. obstet. ginecol. (En línea) ; 83(3): 283-290, jun. 2018. tab, graf
Article in Spanish | LILACS | ID: biblio-959516

ABSTRACT

RESUMEN Los teratomas quísticos maduros son los tumores ováricos más frecuentes. La fistulización de estos a órganos vecinos (colon, intestino delgado y vejiga) es una complicación que cuando se presenta nos obliga a descartar un proceso infiltrativo. Tanto la malignización como la formación de fistulas son complicaciones excepcionales. Está descrito en la bibliografía la malignización como mecanismo de formación de dichas fistulas. Este hecho nos suele obligar a llevar a cabo intervenciones agresivas, como exenteraciones pélvicas anteriores y posteriores. Sin embargo, una revisión de los casos publicados (18) muestra que sólo el 22 % de las fistulas son resultado de una malignización de dicho teratoma. Presentamos una paciente con un teratoma quístico maduro que fistulizó a recto y su manejo en nuestro servicio. Precis: La fistulización a órganos vecinos de un teratoma es una complicación excepcional que requiere un diagnóstico preciso puesto que no siempre es secundaria a neoplasia.


ABSTRACT Mature cystic teratomas are the most common ovarian tumors. The fistulization of these teratomas to adjacent organs (colon, small intestine and bladder) is a complication that when it occurs forces us to rule out an infiltrative process. Together with malignancy, the fistula is a rare complication. Literature describes malignancy as a mechanism for the formation of these fistulas. This event usually forces us to carry out aggressive interventions, such as anterior and posterior pelvic exenterations. However, the case records of 18 patients report that only 22 % of fistulas are produced by malignant teratoma. The following case study presents a mature cystic teratoma that fistulated the rectum and its management in our service.


Subject(s)
Humans , Female , Adult , Teratoma/diagnostic imaging , Rectal Fistula/complications , Colonoscopy , Rectal Fistula/surgery , Rectal Fistula/diagnostic imaging
19.
Med. infant ; 25(2): 205-212, Junio 2018. ilus
Article in Spanish | LILACS | ID: biblio-909962

ABSTRACT

Las masas nasales congénitas de la línea media se presentan con una frecuencia muy baja ­1/20.000 a 1/40.000 nacidos vivos­. Se trata de hallazgos asintomáticos en el recién nacido y son resultado de anomalías congénitas del desarrollo embrionario, que suelen aparecer como masas en la línea media nasal en un punto cualquiera entre glabela y columela. Estas tumoraciones presentan un riesgo elevado de extensión al sistema nervioso central, lo que es especialmente importante tener en cuenta para prevenir consecuencias tales como la fístula de líquido cefalorraquídeo y/o la aparición de meningitis recidivante. Existen gran cantidad de tumores nasales de la línea media que aparecen en el recién nacido o en el lactante y que constituyen diagnósticos diferenciales de las lesiones congénitas antes descriptas. Describiremos brevemente los más frecuentes según nuestra experiencia. AU


Congenital nasal masses of the midline are very rare ­ 1/20,000 to 1/40,000 live births ­. Nasal tumors are asymptomatic findings in the neonate and are caused by congenital abnormalities during fetal development, usually appearing at the nasal midline between the glabella and columella. These tumors are associated with a high risk of extension to the central nervous system; therefore, it is especially important to prevent the development of a cerebrospinal fluid fistula and/or recurrent meningitis. There is a large number of nasal tumors of the midline in neonates or infants in the differential diagnosis of the above-described congenital lesion. Here we briefly describe the most common nasal tumors seen at our department. AU


Subject(s)
Humans , Infant, Newborn , Nose Neoplasms/congenital , Nose Neoplasms/diagnostic imaging , Nose Neoplasms/pathology , Nose Neoplasms/surgery , Nose/abnormalities , Dermoid Cyst/congenital , Encephalocele/congenital , Glioma/congenital , Granuloma/congenital , Hamartoma/congenital , Hemangioma/congenital , Nose/pathology , Nose/surgery , Rhabdomyosarcoma/congenital , Teratoma/congenital
20.
Autops. Case Rep ; 8(2): e2018019, Apr.-May 2018. ilus
Article in English | LILACS | ID: biblio-905584

ABSTRACT

Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is a recently described auto-immune and paraneoplastic encephalitis with prominent neuropsychiatric manifestations affecting young adults with ovarian teratoma. The availability of a novel assay to measure these antibodies might suggest an etiology for this potentially life-threatening disease, which if early recognized can be treated promptly with surgery with chances of a good clinical outcome. Reported prognostic indicators for a good outcome depend on the presence of a tumor, prompt treatment and no admission to an intensive care unit. However, due to the rarity and unawareness of this disease, the diagnosis may be delayed as primary psychiatric disorders, and infective encephalitis is taken more into consideration and ruled out first. Here we report a case of anti-NMDAR encephalitis in a 22-year-old female prompted by an ovarian teratoma with a gradual and complete resolution of symptoms after surgical excision of the teratoma and immunomodulating therapies.


Subject(s)
Humans , Female , Adult , Anti-N-Methyl-D-Aspartate Receptor Encephalitis/complications , Ovarian Neoplasms/complications , Teratoma/complications , Anti-N-Methyl-D-Aspartate Receptor Encephalitis/diagnosis
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