Perinephric Transplant Myelolipoma: A Case Report of a Rare Entity

Abstract

Background: Myelolipomas are benign tumors usually found in adrenal glands. They can also be found extra-adrenally, either in 1 or multiple locations. Perinephric transplant myelolipoma has rarely been reported in the English literature. There's only been 1 instance of such a case reported in a kidney transplant patient, which was found on the explanted kidney. We report a case involving an asymptomatic patient with an ill-defined perinephric transplant mass.

Methods: The mass was then identified as myelolipoma on biopsy. The patient was then managed conservatively with serial imaging and laboratory testing.

Results: At the time of our report, the patient continues to have stable renal function and is doing well 24 months after the mass was first identified.

Conclusions: We report the first case of perinephric transplant myelolipoma in a patient with ongoing stable renal allograft function. Based on our case report, we recommended that conservative management with serial imaging and routine testing be considered for patients with perinephric transplant myelolipoma.