1.
S Afr Med J
; 73(6): 365-8, 1988 Mar 19.
Artigo
em Africano
| MEDLINE
| ID: mdl-3353811
RESUMO
In this study the light microscopic and electron microscopic findings in two renal cell carcinomas with spindle-cell elements are described. The ultrastructural features of the spindle-cell element of sarcomatoid renal cell carcinoma have previously been documented, namely pentalaminar desmosomes, basal lamina formation and intracytoplasmic lumina with microvilli. The electron microscopic findings in the 2 cases described here showed mesenchymal rather than epithelial differentiation. It would appear that some renal cell carcinomas with a spindle-cell element are true carcinosarcomas, rather than sarcomatoid renal cell carcinoma.