title: Factitious retroperitoneal emphysema due to attempted epidural anesthesia.
mesh_terms: D000293:Adolescent; D000368:Aged; D000388:Air; D000767:Anesthesia, Epidural / Q000009:adverse effects*; D003937:Diagnosis, Differential; D004646:Emphysema / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging; D011247:Pregnancy; D011859:Radiography; D012187:Retroperitoneal Space