# Splenic Metastasis in Ewing Sarcoma

## TL;DR

This paper reports a rare case of Ewing sarcoma metastasizing to the spleen, highlighting the importance of considering rare metastases in patients with a history of the disease.

## Contribution

The paper presents the first reported case of splenic metastasis in Ewing sarcoma.

## Key findings

- A 20-year-old female with a history of Ewing sarcoma developed a splenic metastasis years after treatment.
- This case suggests that Ewing sarcoma can metastasize to the spleen, a site previously unreported in the literature.

## Abstract

Ewing sarcoma (ES) is a high-grade osseous malignancy that typically occurs between 10 and 20 years of age. Prognosis is poor with a 30% five-year survival in the case of metastatic disease. This case describes a 20-year-old female patient with known lumbar vertebral ES developing a splenic metastasis years after primary treatment. To the best of our knowledge, metastatic spread to the spleen in ES has not been reported before.

Teaching point: In patients with a history of Ewing sarcoma, new parenchymal lesions should always prompt consideration of rare metastatic disease, given its profound prognostic impact.