Parathyroid cyst of the mediastinum.
D003560:Cysts / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008477:Mediastinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D010279:Parathyroid Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D010280:Parathyroid Glands / Q000002:abnormalities; D011859:Radiography