Abstract
This study presents the case of a 40-year-old male patient after renal transplantation. The CT scan revealed a large mass in the lower abdomen and pelvis, with a branch of the right external iliac artery intersecting the growth. After a comprehensive examination, it was shown that the mass originated from the transplanted kidney, and a radical nephrectomy (including the mass) was performed. We document a case of atypical angiomyolipoma (AAM) occurring in a transplanted kidney. This article reports the case study and a brief literature review of the clinical presentation, diagnosis and treatment of AAM.