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Rosy Cells with a Rocky Core: Low-Grade Oncocytic Tumor with Osseous Metaplasia
Joseph Stenberg1, Justin Tse2, Emily Volpicelli1
1Department of Pathology, University of New Mexico, Albuquerque, NM.
Abstract:
Osseous metaplasia is rarely reported in renal neoplasms and is predominantly associated with a favorable prognosis. Low-grade oncocytic tumor (LOT) represents a novel diagnostic classification of renal neoplasms that exhibit overlapping features of oncocytomas and chromophobe renal cell carcinoma. To the best of our knowledge, there are two definitive cases of low-grade oncocytic tumors with osseous metaplasia in the English literature. We present the third case of a 52-year-old female diagnosed with a low-grade oncocytic tumor exhibiting osseous metaplasia.
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