# Stealthy Encroachment: Unraveling an Encounter With Renal Myelolipoma

## TL;DR

This paper presents a rare case of kidney myelolipoma, a benign tumor, and discusses its diagnosis and successful surgical treatment.

## Contribution

The paper contributes a detailed case report of a symptomatic renal myelolipoma and emphasizes its clinical significance.

## Key findings

- A 59-year-old male with left flank pain was diagnosed with a non-functional kidney due to myelolipoma.
- Surgical removal of the affected kidney resolved the patient's symptoms and confirmed the diagnosis histopathologically.

## Abstract

Myelolipoma of the kidney is an exceedingly unusual benign tumor of hematological components mixed with mature adipose tissue. We present a case of a 59-year-old male who presented with left flank pain and was found to have an atrophic left kidney on imaging studies. A computed tomography (CT) scan revealed a small and shrunken left kidney with an extrarenal pelvis. A diethylenetriamine pentaacetate (DTPA) scan results showed a total glomerular filtration rate (GFR) of 45.6 ml/min with a non-functional left kidney. The patient underwent a left nephrectomy, and a histopathological examination confirmed the diagnosis and highlighted the distinctive morphological features of this rare entity. Postoperatively, the patient experienced a complete resolution of symptoms. This case underscores the importance of considering myelolipoma in the differential diagnosis of renal masses and highlights the successful management of symptomatic cases through surgical intervention. Awareness of this rare tumor is crucial for accurate diagnosis and appropriate management. Further studies are needed to elucidate the natural history and optimal treatment strategies for renal myelolipomas.