Mediastinal lymphoid hamartoma.
D001027:Aortography; D006222:Hamartoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D006801:Humans; D008221:Lymphoid Tissue / Q000473:pathology; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008482:Mediastinum / Q000473:pathology; D008875:Middle Aged