TY - JOUR T1 - Pneumopericardium: diagnosing a rare entity with bedside imaging JF - Emergency Medicine Journal JO - Emerg Med J SP - 1082 LP - 1082 DO - 10.1136/emermed-2011-200530 VL - 28 IS - 12 AU - P J Howlett AU - T P Chua Y1 - 2011/12/01 UR - http://emj.bmj.com/content/28/12/1082.1.abstract N2 - A 64-year-old man was admitted to our accident and emergency department with acute neck pain. On initial assessment he was hypotensive. Auscultation of … ER -