# Primary Mediastinal Dysgerminoma: A Case Report and Literature Review

## TL;DR

This paper presents a rare case of a mediastinal dysgerminoma in a young patient and reviews related literature.

## Contribution

The novelty lies in reporting a rare extragonadal germ cell tumor case with detailed clinical presentation.

## Key findings

- A 26-year-old patient had a large anterosuperior mediastinal tumor involving vital structures.
- The tumor was diagnosed as a primary mediastinal dysgerminoma.
- Symptoms were not characteristic, and the tumor was discovered incidentally.

## Abstract

Germ cell tumors are malignant tumors that mostly develop in the gonads. Extragonadal localization is rare and may affect the mediastinal and sacrococcygeal regions. Mediastinal seminoma is a malignant germ cell tumor of the mediastinum. The tumor typically occurs in the anterosuperior mediastinum in males and often has a very slow growth pattern and limited potential for metastasis. And symptoms are not very characteristic, with many patients being asymptomatic and the tumor being discovered incidentally. In this paper, we report the case of a 26-year-old patient admitted for the management of a large anterosuperior mediastinal tumor encasing the vital structures of the mediastinum.