Myelolipoma of renal sinus in a patient with end-stage renal disease: A rare differential diagnosis in renal neoplasms

Ted Farzaneh; Ifegwu Ibe; Sherehan Zada

doi:10.1177/2050313X211004799

Myelolipoma of renal sinus in a patient with end-stage renal disease: A rare differential diagnosis in renal neoplasms

SAGE Open Med Case Rep. 2021 Mar 24:9:2050313X211004799. doi: 10.1177/2050313X211004799. eCollection 2021.

Authors

Ted Farzaneh¹, Ifegwu Ibe¹, Sherehan Zada¹

Affiliation

¹ Department of Pathology and Laboratory Medicine, University of California, Irvine, Orange, CA, USA.

Abstract

Myelolipoma is an uncommon benign neoplasm composed of mature adipose tissue and hematopoietic elements. Myelolipoma occurs most frequently in the adrenal gland but occasionally can be seen in extra-adrenal locations such as lung, liver, retroperitoneum, mediastinum, and kidney. We report a case of extra-adrenal myelolipoma presented as a localized asymptomatic mass in the renal sinus of left native kidney of a 60-year-old woman. The patient was being investigated for end-stage renal disease status post renal transplant. Histologic examination of the lesion showed classic features for myelolipoma. Our case illustrates the awareness of this entity in unusual location and the appropriate use of diagnostic modalities to prevent unnecessary surgical interventions particularly in patients with major co-morbidity in the future.

Keywords: Myelolipoma; extra-adrenal; kidney; renal sinus; retroperitoneum.

Publication types

Case Reports