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Renal cell carcinoma with massive osseous metaplasia and bone marrow elements
R K Cribbs1, M Ishaq, M Arnold
1Departments of Pathology, Surgery, and Medicine, The Ohio State University Medical Center, Columbus, OH 43210, USA.
Annals of Diagnostic Pathology
|November 11, 1999
Abstract:
Focal calcifications are frequently seen in renal masses and may be present in renal cell carcinomas. Metaplastic bone formation, on the other hand, is a rare event. We report a unique case of a large calcified renal cell carcinoma with massive osseous metaplasia and bone marrow elements. The clinical and pathologic differential diagnosis for this tumor is discussed along with a review of the literature on this unusual phenomenon.