# Ewing Sarcoma of the Kidney, a Rare Entity: Case Report

## TL;DR

This paper reports a rare case of Ewing sarcoma in the kidney of a 16-year-old male, emphasizing its aggressive nature and the importance of considering this diagnosis in young patients.

## Contribution

The novelty lies in highlighting Ewing sarcoma as a rare but important differential diagnosis for kidney tumors in adolescents.

## Key findings

- Ewing sarcoma of the kidney is rare and aggressive with early metastasis.
- A 16-year-old male presented with abdominal pain and was diagnosed with Ewing sarcoma after nephrectomy and immunohistochemistry.
- The case underscores the need to consider Ewing sarcoma in the differential diagnosis of kidney tumors in young patients.

## Abstract

Ewing sarcoma is a small round cell tumor of uncertain differentiation, primarily originating in bone in children and adolescents. Ewing sarcoma of the kidney is a rare occurrence and follows an aggressive course with early metastasis. Herein, we present a case of a 16-year-old male presenting with abdominal pain and lump. He underwent nephrectomy and histopathological diagnosis of small round cell tumor with differential diagnosis of Ewing sarcoma was made which was further confirmed by immunohistochemistry. Thus, Ewing sarcoma must also be taken into consideration while dealing with tumors of the kidney in young age group.