Lesiones focales hepáticas en niños / Focal liver lesions in children

Las lesiones focales del hígado comprenden un grupo heterogéneo de entidades como tumores benignos y malignos, sólidos o quistes, vasculares, masas inflamatorias y metástasis, entre otras. Reportar lesiones focales hepáticas en niños, características clínicas, estudios por imágenes y conducta terapéutica. Estudio descriptivo, retrospectivo, basado en la revisión de 16 historias clínicas de niños con lesiones focales hepáticas en el periodo comprendido entre enero 2007 a enero 2012. Se excluyeron los abscesos hepáticos. El 68,75%11 eran del sexo masculino y 31,25%5 del sexo femenino; con edad promedio de 9,5 años (rango: 10 días - 14 años). Las lesiones focales benignas fueron: hemangioma 4/16 (25%), hematoma hepático 4/16 (25%), quiste hepático 3/16 (18,75%), hiperplasia nodular focal 1/16 (6,25%) adenoma 1/16 (6,25%) y las malignas: hepatocarcinoma 2/16 (12,50%) y hepatoblastoma 1/16 (6,25%). La mayoría de los pacientes (56,25%) se encontraban asintomáticos, 3/16 (18,75%) presentaron dolor abdominal, 3/16 (18,75%) masa palpable y 2/16 (12,5%) ictericia. La lesión fue identificada por ultrasonido abdominal en todos los pacientes y sólo el 56,25% (9/16) ameritaron tomografía con contraste. Al 43,75% (7/16) se les realizó marcadores tumorales y de estos el 42,85% (3/7) reportaron neoplasias. El funcionalismo hepático reportó normal en el 75% de los casos. El ultrasonido abdominal es el método de elección para el diagnóstico y seguimiento de las lesiones focales hepáticas, mientras el origen de las mismas, guía la conducta terapéutica

Focal liver lesions comprise a heterogeneous group of entities such as benign and malignant, solid or cysts, vascular, inflammatory masses and metastasis among others. To report focal liver lesions in children, clinical features, imaging and therapeutic behavior. A descriptive, retrospective study based on a review of 16 case histories of children with focal liver lesions in the period from January 2007 to January 2012. Liver abscesses were excluded. 68.75%11 were male and 31.25%5 females, mean age 9.5 years (range: 10 days - 14 years). Focal lesions were benign: Hemangioma 4/16 (25%), liver hematoma 4/16 (25%), hepatic cyst 3/16 (18.75%), nodular focal hyperplasia 1/16 (6.25%) and adenomas 1/16 (6.25%) and malignant: Hepatocellular carcinoma 2/16 (12.50%) and hepatoblastoma 1/16 (6.25%). Most patients (56.25%) were asymptomatic, 3/16 (18.75%) had abdominal pain, 3/16 (18.75%) and palpable mass 2/16 (12.5%) jaundice. The lesion was identified by abdominal ultrasound in all patients and only 56.25% (9/16) needed tomography with contrast. To 43.75% (7/16) underwent tumor markers and of these 42.85% (3/7) reported neoplasm. Normal hepatic function reported in 75% of cases. An abdominal ultrasound is the method of choice for the diagnosis and management of focal liver lesions, while the origin of them, guide therapeutic conduct

Nódulos hepáticos en adolescente con glucogenosis tipo Ia / Liver nodules in an adolescent with glycogenosis type Ia

La glucogenosis tipo I o Enfermedad de Gierke, es una enfermedad metabólica, hereditaria, por deficiencia de la Glucosa6-Fosfatasa, que ocasiona acumulo anormal de glucógeno en hígado, riñón y mucosa intestinal. Las manifestaciones clínicas: hipoglucemia, hepatomegalia, hiperlactacidemia, hiperlipidemia. Las complicaciones a largo plazo: gota, insuficiencia renal progresiva y adenoma hepático en la segunda o tercera década de la vida. Caso clínico: adolescente masculino de 12 años, en control desde su diagnóstico de Glucogenosis Ia a los 7 meses, con tratamiento nutricional y manejo multidisciplinario. El paciente presenta mal control metabólico con hipoglicemias recurrentes y hospitalizaciones secundarias a transgresión dietética. Examen físico: palidez cutánea mucosa moderada, obesidad troncal, cara de muñeca, abdomen prominente, hepatoesplenomegalia y postura lordótica. En control ecográfico, se reporta: nefromegalia bilateral y hepatoesplenomegalia difusa con lesiones de aspecto nodular, múltiples, intrahepáticas, sugestivas de Adenoma hepático. La biopsia de las lesiones: daño hepatocelular difuso, glucogenosis tipo I. TAC abdominal: hepatomegalia con 4 lesiones nodulares (adenomas) y lesión de ocupación de espacio hipercaptante en segmento hepático IV. En su seguimiento anual, se solicita ecografía abdominal, alfa-fetoproteína y otros marcadores, por tratarse de una lesión premaligna, de presentación precoz. En caso de deterioro clínico, el paciente es candidato a trasplante hepático, en caso de deterioro.

The type I glycogenosis Gierke's Disease is a metabolic disease, hereditary deficiency of glucose-6-phosphatase, which causes abnormal accumulation of glycogen in liver, kidney and intestinal mucosa. Clinical manifestations: hypoglycemia, hepatomegaly, hyperlactataemia, hyperlipidemia. The long-term complications: gout, progressive renal failure and hepatic adenoma in the second or third decade of life. Case report: A male adolescent of 12 years in control after diagnosis of glycogenosis Ia at 7 months, nutritional treatment and multidisciplinary management. The patient has poor metabolic control with recurrent hypoglycemia, and hospitalizations secondary to dietary transgression. Physical exam: moderate mucosal pallor, truncal obesity, doll face, protruding abdomen, hepatosplenomegaly and lordosis. In ultrasound guidance, it is reported: nephromegaly bilateral and diffuse hepatosplenomegaly with nodular lesions, multiple, intrahepatic, suggesting hepatic adenoma. The biopsy of the lesions: diffuse hepatocellular damage, glycogen storage disease type I. Abdominal CT: 4 hepatomegaly with nodular lesions (adenomas) and space-occupying lesion uptake in liver segment IV. In its annual monitoring is required abdominal ultrasound, alpha-fetoprotein and other markers, because it is a premalignant lesion, which occurred early. In case of clinical deterioration, the patient is a candidate for liver transplantation, in case of damage.

A Case of Hepatocellular Carcinoma Within Hepatocellular Adenoma in a Non-Cirrhotic Male

Hepatocellular adenoma (HA) is a benign hepatic lesion that predominantly occurs in young women. Most hepatocellular carcinomas (HCC) arise in a cirrhotic liver during the fifth or sixth decades. There have been several reported cases of HCC developing from HA in female patients. However, there are rare cases about HCC arising in HA in a non-cirrhotic male patient. We have recently encountered a 53-year-old man who had a liver mass in a non-cirrhotic liver, and the liver mass was compatible with HA on the pre-operative computed tomography. The mass was completely resected and the histopathology revealed a focus of HCC arising in HA. We report here on this case along with a brief review of the relevant literature

Hepatocellular adenoma in a Eurasian otter (Lutra lutra)

A 7-year-old female Eurasian otter (Lutra lutra) at the Seoul Grand Park, Korea, died after displaying depression, anorexia, weight loss and rough skin for several days. At necropsy, a solitary friable round mass, which was approximately 12 x 9 x 5 cm and mottled dark red and yellow, was found bulging from the right hepatic lobe. Microscopically, the nonencapsulated, poorly circumscribed mass was composed of solid sheets of neoplastic hepatocytes. In addition, numerous small tan foci, ranging from 0.5 to 1.0 cm in diameter, were evenly scattered throughout the pancreatic tissue. These foci were found to be nonencapsulated, well-demarcated hyperplastic nodules of the exocrine pancreatic gland. We observed neither intrahepatic nor extrahepatic metastases. Based on the gross and microscopic changes, we diagnosed the animal as having a hepatocellular adenoma accompanied by exocrine pancreatic nodular hyperplasia.

Hepatocellular Carcinoma Arising in Hepatocellular Adenoma / 대한간학회지

No abstract available.

Hepatocellular adenoma and focal nodular hyperplasia of the liver: differential diagnosis in dogs / Adenoma hepatocelular e hiperplasia nodular focal do fígado: diagnóstico diferencial em cäes

Dentre as alteraçöes hepáticas encontradas na rotina de necrópsias em medicina veterinária, as lesöes nodulares säo as menos caracterizadas. Estas incluem processos reacionais ou hiperplásicos, neoplásicos e hamartomas. Este estudo foi realizado com a finalidade de diferenciar os adenomas hepatocelulares (AH) das hiperplasias nodulares focais (HNF) do fígado em cäes. Dez casos de lesöes nodulares hepáticas em cäes foram levantados dos arquivos do Departamento de Patologia da Faculdade de Medicina Veterinária e Zootecnia da Universidade de Säo Paulo. Métodos histoquímicos e imunohistoquímicos foram aplicados a cada caso, com a finalidade de caracterizar as lesöes, de acordo com critérios histológicos definidos para as mesmas lesöes no homem. Dos resultados descritos foi possível diagnosticar oito casos de HNF e dois casos de AH. Conclui-se que estas técnicas podem ser facilmente utilizadas e que säo adequadas para os objetivos propostos