RESUMO
We report two cases of a choledochal cyst associated with dilatation of the cystic duct. This unusual variant of choledochal cyst was explored by ultrasonography and MR cholangiopancreatography.
Assuntos
Cisto do Colédoco/complicações , Cisto do Colédoco/patologia , Ducto Cístico/patologia , Pré-Escolar , Colangiografia/métodos , Ducto Cístico/diagnóstico por imagem , Dilatação Patológica/etiologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , UltrassonografiaRESUMO
Lipoblastoma is an uncommon benign soft tissue tumor arising from embryonal mesenchymal cells. It occurs mostly during early childhood with a predilection for the extremities, trunk, head and neck. This tumor tends to spread locally and no metastatic potential has been reported. Complete surgical resection is mandatory to prevent local recurrence. MRI provides excellent presurgical delineation of the tumor and confirms its fatty nature. Histology demonstrates the presence of lipoblasts in different stages of maturation; cytogenetic evaluation often discloses chromosomal anomalies of tumoral cells. A case of lipoblastoma of the buttock in a 10 month infant associated with anomalies of chromosome 8 is reported.
Assuntos
Nádegas , Cromossomos Humanos Par 8 , Lipoma/diagnóstico , Neoplasias de Tecidos Moles/diagnóstico , Translocação Genética , Biópsia , Citogenética , Humanos , Lactente , Cariotipagem , Lipoma/complicações , Lipoma/cirurgia , Imageamento por Ressonância Magnética , Masculino , Neoplasias de Tecidos Moles/complicações , Neoplasias de Tecidos Moles/cirurgia , Translocação Genética/genéticaRESUMO
Renal US was prospectively performed in 124 madagascan children less than 1 year of age. Patients were examined in the prone position and maximum kidney length was measured in the longitudinal plane. These measurements and the height and weight of our patient population were compared to published tables. Kidney length and height and weight of our patient population were inferior to the previously published reference data and the growth curve of kidneys steeper than normative standards (p < 0.001). Because of the important variability in US measurement of kidney length it is not possible to definitely conclude that length and growth curve of kidneys in madagascan children are statistically different from those of the published normative standards.