title: Occult renal cell carcinoma in a patient with polymyositis.
abstract: Polymyositis (PM) is associated with an increased risk of malignancy. We report a case in which a 45-year-old patient with PM underwent computed tomography to search for an occult malignant process. The evaluation revealed a left renal mass that was treated successfully by laparoscopic radical nephrectomy. Pathologic evaluation revealed a clear cell renal cell carcinoma. The patient remained free of disease at 2 years postoperatively and required decreasing amounts of medication to manage his PM. This suggests that renal malignancies may contribute to the PM disease process in a paraneoplastic fashion and that screening for occult malignancy in the presence of PM is warranted.
authors: Department of Urology, Mount Sinai Medical Center, New York, New York 10029, USA.
authors: Adam P
authors: AP
authors: Klausner
authors: Michael C
authors: MC
authors: Ost
authors: Robert L
authors: RL
authors: Waterhouse
authors: Stephen J
authors: SJ
authors: Savage
mesh_terms: D002292:Carcinoma, Renal Cell / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009382:Neoplasms, Unknown Primary / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D017285:Polymyositis / Q000150:complications*