SMARCA4-deficient thoracic sarcoma revealed by metastasis to the small intestine: a diagnostic dilemma.

SMARCA4-deficient thoracic sarcoma (SMARCA4-DTS) is a recently identified aggressive subtype of sarcoma. We present the case of a 44-year-old man who underwent a surgery for a perforated small intestine. Compued tomography scan revealed a tissular mediastino-pulmonary mass.