title: Large intrathoracic superior sulcus cystic mass arising from the brachial plexus in childhood.
mesh_terms: D001917:Brachial Plexus; D002675:Child, Preschool; D003560:Cysts / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006732:Horner Syndrome / Q000209:etiology; D006801:Humans; D008297:Male; D011183:Postoperative Complications; D011859:Radiography; D013896:Thoracic Diseases / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D013903:Thoracic Surgery; D013909:Thorax / Q000601:surgery