title: Malignant fibrous histiocytoma of the mediastinum presenting as a retrosternal mass.
mesh_terms: D018219:Histiocytoma, Benign Fibrous / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008875:Middle Aged; D014057:Tomography, X-Ray Computed