[Unusual site of an embryonal rhabdomyosarcoma of the mesenchymal hepatic pedicle]. / Localisation inhabituelle d'un rhabdomyosarcome embryonnaire du mésenchyme pédiculaire hépatique.
Ann Pathol
; 19(6): 521-4, 1999 Dec.
Article
em Fr
| MEDLINE
| ID: mdl-10617810
ABSTRACT
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma of children. Tumors arising in the extrahepatic biliary tree are extremely rare (less than 1% of cases). In this location, most are RMS of the botryoid type. We report a case of a 10-year-old child with embryonal RMS arising in the mesenchyma of the hepatic pedicle. Most tumor cells were large, round with abundant eosinophilic cytoplasm. A few cells were small round or spindle-shaped. Tumor cells showed positive immunostaining for muscle markers desmin and sarcomeric actin. Electron microscopy revealed 2 types of cells some were undifferentiated and others showed striated muscle differentiation features.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Rabdomiossarcoma Embrionário
/
Neoplasias Hepáticas
Limite:
Adult
/
Humans
/
Male
Idioma:
Fr
Revista:
Ann Pathol
Ano de publicação:
1999
Tipo de documento:
Article