# Chondroblastic osteosarcoma of the nasal cavity: an exceptional and misdiagnosed presentation

## TL;DR

A rare case of chondroblastic osteosarcoma in the nasal cavity is presented, emphasizing the need for accurate histological diagnosis.

## Contribution

The paper reports a rare primary craniofacial chondroblastic osteosarcoma case in an adolescent.

## Key findings

- The tumor showed cartilaginous lobules and spindle cell proliferation with osteoid matrix.
- Immunohistochemical analysis confirmed the diagnosis of chondroblastic osteosarcoma.
- Accurate histopathological evaluation is critical for distinguishing this tumor from chondrosarcoma.

## Abstract

Chondroblastic osteosarcoma of the nasal cavity is a rare and aggressive tumor that presents diagnostic challenges due to its variable clinical and radiological features. Histological analysis is crucial for an accurate diagnosis, despite morphological similarities with chondrosarcoma. We present a case of primary craniofacial chondroblastic osteosarcoma originating from the nasal cavity in a 17-year-old adolescent. The tumor was characterized by cartilaginous lobules and spindle cell proliferation with osteoid matrix deposition. Immunohistochemical analysis supported the diagnosis. This case highlights the rarity of this particular presentation and emphasizes the significance of accurate diagnosis through histopathological evaluation to achieve optimal management.