Figure 3
From: Renal cell carcinoma metastasizing to solitary fibrous tumor of the pleura: a case report
Histologic and immunophenotypic characteristics of the tumor. (a) Sections of pleural-based solitary fibrous tumor showing a cellular spindle-cell neoplasm with a patternless architecture and "staghorn" vessels. (b and c) A nodular collection of epithelioid clear cells was incidentally found within the tumor. (d) These cells are negative for CD34 (in contrast to the solitary fibrous tumor on the left), but immunoreactive with (e) broad-spectrum cytokeratin, (f) vimentin, (g) CD10 and (h) paired box gene 2 (PAX2).