# A Challenging Diagnosis of Gliosarcoma: A Case Report

## TL;DR

This case report describes a rare brain tumor called gliosarcoma that was initially mistaken for a metastasis or glioblastoma.

## Contribution

The paper highlights the diagnostic challenge of gliosarcoma and its similarity to other brain tumors.

## Key findings

- A 74-year-old patient was diagnosed with gliosarcoma after initial suspicion of brain metastasis or glioblastoma.
- Gliosarcoma's radiological features can closely resemble those of glioblastoma or metastatic tumors.
- Histopathological examination is essential for accurate diagnosis of gliosarcoma.

## Abstract

Gliosarcoma (GS) is a rare variant of glioblastoma (GBM) that usually affects middle-aged adults. The radiological characteristics of GS are similar to the radiological features observed in GBM. We present the case of a 74-year-old male patient who presented with neurological symptoms associated with a brain tumor. The patient had a medical history of prostate cancer, and MRI findings suggested the diagnosis of brain metastasis or GBM. However, postoperative histopathological examination of the tissue specimen confirmed a diagnosis of GS. GS can mimic several entities and should be included in the differential diagnosis of metastasis-like brain masses.