title: Fibrosarcoma arising in long-standing mycosis fungoides.
mesh_terms: D001344:Autopsy; D001706:Biopsy; D002280:Basal Cell Carcinoma / Q000150:complications; D004890:Erythema; D005354:Fibrosarcoma / Q000209:etiology* / Q000473:pathology / Q000532:radiotherapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D009182:Mycosis Fungoides / Q000150:complications* / Q000473:pathology; D009362:Neoplasm Metastasis; D009669:Nose Neoplasms / Q000150:complications; D010267:Parapsoriasis; D013902:Radiography, Thoracic; D012878:Skin Neoplasms / Q000209:etiology*