Unusual bilateral renal histiocytosis. Extranodal variant of Rosai-Dorfman disease.
Arch Pathol Lab Med 1992;
116:1366-7. [PMID:
1456886]
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Abstract
A 37-year-old Bangladeshi presented with large bilateral masses involving the hilus of the kidneys. No lymphadenopathy was noted. Nephrectomy was performed. Histopathologically, it revealed a lymphohistiocytic and plasma cell inflammatory tumoral proliferation with characteristic lymphophagocytosis by the S100-positive-CD1-negative histiocytes. Extranodal presentation of sinus histiocytosis with massive lymphadenopathy (Rosai-Dorfman disease) should be entertained in the differential diagnosis of bilateral masses involving the kidneys.
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