title: Unusual patterns of solitary sacral plasmacytoma.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008875:Middle Aged; D010954:Plasmacytoma / Q000000981:diagnostic imaging*; D011859:Radiography; D012447:Sacrum / Q000000981:diagnostic imaging*; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging*