A Closed Chest Trauma Revealing Primary Pleomorphic Sarcoma of the Chest Wall

Sarcomas are a heterogeneous group of uncommon tumors that originate from mesenchyme cells, representing less than 1% of adult malignancies and about 0.1-0.15% of all soft tissue malignant tumors of the chest wall in adults. Pleomorphic sarcoma is a rare entity that usually occurs in the lower limbs, more rarely in the abdomen or thorax. We report the case of a young patient who consulted for chest mass appearing after a closed chest trauma. The biopsy showed a pleomorphic sarcoma.