Hereditary leiomyomatosis and renal cell carcinoma syndrome: a case report.

The simultaneous occurrence of multiple cutaneous leiomyomas, uterine leiomyomatosis, and renal cancer is described as a cancer syndrome with an autosomal dominant pattern of inheritance. We report a 79-year-old man who presented with multiple hyperkeratotic, erythematous nodules on his right leg with a histological diagnosis of pilar leiomyoma. In a review of systems, gross hematuria, weight loss, and bone pain were noted. His pathologic diagnosis was determined to be metastatic papillary renal cell carcinoma. A family history revealed that his sister had a hysterectomy for uterine leiomyomas. The findings in this case can be attributed to hereditary leiomyomatosis and renal cell carcinoma syndrome.