Forgotten needles.
D001132:Arm; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000209:etiology*; D003932:Heroin; D006801:Humans; D008297:Male; D008875:Middle Aged; D009333:Neck; D010490:Pericardial Effusion / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy; D011859:Radiography; D015819:Substance Abuse, Intravenous / Q000150:complications*; D016896:Treatment Outcome
D003932:Heroin