A rare case of soft tissue chondroblastoma of the quadratus femoris muscle: A case report and literature review.

Chondroblastomas are very rare benign primary bone tumors that typically develop in bones in young adults. Extraosseous chondroblastomas are extremely rare, with a few case reports documented in the literature. The treatment is surgical with a high healing rate. MRI is a key examination for bony forms, and our study has strengthened the MRI description reported in some cases of the extraosseous form. We describe the case of a 40-year-old woman with a chondroblastoma of the soft tissues of the hip more precising in the quadratus femoris muscle and its clinical, radiological, and MRI appearance. The patient underwent complete surgical excision of the mass, and no clinical or MRI signs of recurrence were detected after 18 months of follow-up.