PMEL and acute myeloid leukemia: Almost all previously reported leiomyomas arising from the renal capsule are now considered to be fat‐poor leiomyomatous AML1, 8 because nowadays, HMB‐45 has been widely used to diagnose renal smooth muscle tumors, and many of them were positive for HMB‐45 and eventually diagnosed as AML.1, 8