Hibernoma dorsal gigante: presentación de caso / Hibernoma giant dorsal: case report

El hibernoma o lipoma de grasa parda, es un tumor benigno extremadamente infrecuente. Presentamos el caso, de un paciente femenino de 12 años de edad con una tumoración gigante en región dorsal, de origen congénito, con una extensión desde la región cervical baja hasta el sacro, presentaba con ausencia de los músculos de la región glútea, se realizó estudios de imagen, así como química sanguínea, donde se evidencio anemia severa y desnutrición proteico energética, se organizó un equipo multidisciplinario centrado al tratamiento definitivo de la lesión, la cual provocaba además seria deformidad de la columna lumbar (cifoescoliosis), se logró la resección completa de la lesión, con un peso total de 12 Kg, con reconstrucción de los bordes anales sin afectar el esfínter anal, se mantuvo bajo seguimiento durante 1 años sin presentar ninguna recidiva de la lesión.

The hibernoma or fetal brown fat, is an uncommon benign tumor. We report a case with an unusual mass in a 12 years old female, in dorsal region, congenital origin, with extension from down cervical region until sacral region, absence of gluteal region muscle. We did image study and blood test, with diagnosis of severe anemia and malnutrition. We organized multidisciplinary team to do final treatment for the lesion that caused important deformity to lumbar spine (kyphoscoliosis), the surgical team achieved gross total resection of tumor, with 12 kg of total weight and reconstruction of anal edge without damage of sphincter, follow up during one year without recurrence.

Lipoleiomioma uterino: un hallazgo inusual / Uterine lipoleiomyoma: an unusual finding

Los tumores lipomatosos uterinos son lesiones generalmente benignas, de patogenia incierta y muy baja incidencia. Habitualmente se presentan en mujeres posmenopáusicas y el diagnóstico preoperatorio es difícil debido a que se confunden clínicamente y ecográficamente con leiomiomas. Usualmente son asintomáticos pero pueden manifestarse con metrorragia, dolor pélvico y masa palpable. El tumor lipomatoso uterino más frecuente es el lipoma mixto cuya denominación dependerá de las proporciones de tejido adiposo y conectivo que lo constituyan. El manejo puede ser conservador o quirúrgico dependiendo del tamaño y sintomatología de la paciente. Se presenta el caso de una mujer de 50 años, con un tumor uterino diagnosticado preoperatoriamente como leiomioma y con diagnóstico histopatológico de lipoleiomioma.

The uterine lipomatous tumors are usually benign lesions, of uncertain pathogenesis and very low incidence. They are often presented in postmenopausal women and the preoperative diagnosis is difficult because they are confounded clinically and sonographically with leiomyomas. They are frequently asymptomatic but may present with metrorrhagia, pelvic pain and palpable mass. The most common uterine lipomatous tumor is the mixed lipoma whose denomination depends on the proportions of fat and connective tissue. The conservative or surgical management will depend on the size of the tumor and the patient symptoms. We present a case report of a 50 year- old woman with a uterine tumor diagnosed preoperatively as leiomyoma and whose histopathological diagnosis was lipoleiomyoma.

Lipoleiomyoma associated to uterine prolapse: a case report / Lipoleiomioma associado a prolapso uterino: relato de caso

Lipoleiomyoma is a rare benign tumor of the uterus, with an incidence ranging between 0.03 por cento and 0.2 por cento. DESCRIPTION: the authors report a case of lipoleiomyoma diagnosis in an 82-year-old woman with a totally prolapsed uterus. DISCUSSION: lipoleiomyoma is most common among postmenopausal women and is associated with ordinary leiomyomas. Histologically it is composed of smooth muscle, adipocytes and fibrous tissue. In general asymptomatic, the diagnosis usually involves imaging studies such as ultrasound and computed tomography of the pelvis...

Lipoleiomioma é um raro tumor benigno do útero, com uma incidência variando entre 0,03 percent e 0,2 percent. DESCRIÇÃO: os autores relatam um caso de diagnóstico ocasional de lipoleiomioma ocorrido em uma mulher de 82 anos e com prolapso uterino total. DISCUSSÃO: o lipoleiomioma é mais frequente entre mulheres pós-menopáusicas associado a leiomiomas comuns. Histologicamente é composto por músculo liso, adipócitos e tecido fibroso. Em geral assintomático, o diagnóstico envolve normalmente estudos de imagem como ultrassom e tomografia computadorizada da pelve...

Reemplazo graso total idiopático del páncreas: Reporte de un caso

La lipomatosis pancreática difusa o focal es una entidad que puede ser secundaria a patologías sistémicas (como el síndrome de Shwachman-Diamond, la fi brosis quística u otras) o ser idiopática. Se han reportado algunos casos con ausencia de síntomas clínicos o alteraciones en el laboratorio y otros en los que la funcionalidad del páncreas se encontraba comprometida. Aquí presentamos un caso en el cual el hallazgo de reemplazo graso total fue incidental, debido a que se visualizó en una tomografía computada (TC) solicitada por otras razones.

Fat replacement of pancreas is a condition that may be secondary to systemic diseases (such as Shwachman-Diamond syndrome or cystic fi brosis), or may be idiopathic. There are some reported cases in which there are no clinic symptoms or laboratory changes, and others where the pancreatic function is compromised. We present a case with an incidental finding of fat replacement, after a computed tomography (CT) performed for others reasons.

Nevo lipomatoso cutáneo superficial: presentación de dos casos / Superficial cutaneous lipomatous nevus: report of two cases

El nevo lipomatoso cutáneo superficial (NLCS) es una anomalía del desarrollo infrecuente, caracterizada por la presencia de tejido adiposo maduro ectópico en la dermis. Puede estar presente al nacer o aparecer en la infancia o adolescencia. Describimos dos casos de NLCS: el primero, un niño de 4 años con una placa hipertricótica en la nalga izquierda, presente desde el nacimiento y el segundo, una niña de 9 años con una placa de aspecto esclerodermiforme en el muslo izquierdo, de aparición en etapa preescolar.

Nevus lipomatosus cutaneous superficialis (NLCS) is a rare developmental anomally characterized by the presence of ectopic mature adipose tissue in the dermis. It may be present at birth, or appear at chilhood or adolescence. We describe two cases of NLCS: the firs one, a 4-year-old child that presented with an hypertrychotic plaque on his left buttock, present from birth and, the second one, a 9-year-old girl with a plaque of sclerodermiform appearance on her left leg, that arise before school time.

Mielolipoma gigante bilateral da glândula adrenal / Bilateral giant adrenal myelolipoma

Mielolipomas são tumores benignos relativamente raros, freqüentemente associados à glândula adrenal. Geralmente são não-funcionantes, assintomáticos e medem menos de 5 cm. Mielolipomas adrenais bilaterais e gigantes são raros. Relatamos o primeiro caso de mielolipoma gigante bilateral da glândula adrenal da literatura latino-americana: paciente do sexo feminino, 57 anos, com queixa de dor no flanco esquerdo. A tomografia computadorizada do abdome mostrou massas bilaterais da glândula adrenal, medindo a direita 9 x 7 x 6,5 cm e a esquerda 23 x 19 x 8 cm. As massas eram radiologicamente consistentes com tecido adiposo. O diagnóstico pré-operatório foi de lipossarcoma. A paciente foi submetida à laparotomia com retirada das massas. O exame microscópico diagnosticou mielolipomas bilaterais. Embora sejam tumores benignos, seu tratamento deve ser cirúrgico, pois somente o exame anatomopatológico pode descartar uma neoplasia maligna.

Myelolipomas are relatively rare benign tumors, frequently associated with the adrenal glands. Usually, they are non-functioning, asymptomatic and measure less than 5 cm. Bilateral giant adrenal myelolipomas are rare. We report the first case of bilateral giant adrenal myelolipomas of the Latin American literature: a 57-year old woman who presented with left abdominal pain. The computed tomography scanning revealed bilateral suprarenal masses measuring 9 x 7 x 6.5 cm on the right and 23 x 19 x 8 cm on the left. The masses were radiographically consistent with fatty tissue. The preoperative diagnosis was liposarcoma. Surgery was performed with excision of the masses. The histologic analysis identified bilateral adrenal myelolipomas. Although they are benign tumors, surgery must be performed because only the histologic analysis can exclude malignancy.