Primary diffuse pleural rhabdomyosarcoma in an adult patient.

Rhabdomyosarcoma is an aggressive malignant tumor of childhood, originating from immature cells that are destinated to form striated skeletal muscle. It usually arises in the head and neck or the extremities. Primary diffuse pleural rhabdomyosarcoma is exceptionally rare. Herein we report a case of primary diffuse pleural rhabdomyosarcoma in a 48-year-old man. The diagnosis was confirmed by percutaneous pleural biopsy. Chemotherapy (cisplatin, ifosfamide, adriamycin, vincristine) was initiated due to the large volume of the tumor. After 3 months, computed tomography of the thorax showed stable radiological findings.