Rhabdomyosarcoma with focal cartilaginous differentiation (malignant mesenchymoma) of the inferior vena cava.

Abstract

A sarcoma arising from the inferior vena cava occupied the entire lumen of the inferior vena cava, right atrium, hepatic veins and common iliac veins. Its histological appearance was non-specific sarcoma, except for the presence of a few rhabdomyoblasts and some immature cartilaginous tissue. Immunohistochemically, some tumor cells were positive for myoglobin, desmin, HHF-35, and vimentin. Electron microscopy revealed that some tumor cells contained myofilaments and Z bands in the cytoplasm, which are characteristics of rhabdomyosarcoma. The tumor was diagnosed as rhabdomyosarcoma with focal cartilaginous differentiation (malignant mesenchymoma) of the inferior vena cava.

• Authors: Y Kuwashima, S Hayashi, M Arata, T Takemura
• Journal: Acta pathologica japonica (Acta Pathol Jpn) Vol. 42 Issue 5 Pg. 382-5 (May 1992) ISSN: 0001-6632 [Print] Australia
• PMID: 1636440 (Publication Type: Case Reports, Journal Article)

Topics

• Aged
• Female
• Humans
• Mesenchymoma (pathology)
• Rhabdomyosarcoma (pathology)
• Vascular Diseases (pathology)
• Vena Cava, Inferior (pathology)