title: Letter: Extrinsic abdominal mass.
mesh_terms: D000005:Abdomen; D000008:Abdominal Neoplasms / Q000175:diagnosis; D002763:Cholecystectomy; D003937:Diagnosis, Differential; D005547:Foreign Bodies / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications