title: Posterior mediastinal mass lesion.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008476:Mediastinal Cyst / Q000000981:diagnostic imaging*; D010181:Pancreatic Cyst / Q000000981:diagnostic imaging*; D010192:Pancreatic Pseudocyst / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed