title: An unusual mass in the thigh.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000556:secondary*; D000368:Aged; D015179:Colorectal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D019042:Muscle Neoplasms / Q000175:diagnosis / Q000556:secondary*; D013848:Thigh