title: A soft tissue sarcoma occurring four years after radiotherapy.
mesh_terms: D001984:Bronchial Neoplasms / Q000532:radiotherapy; D005354:Fibrosarcoma / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009381:Neoplasms, Radiation-Induced; D011878:Radiotherapy / Q000009:adverse effects*; D012878:Skin Neoplasms / Q000209:etiology*