Pneumopericardium

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Pneumopericardium
CT scan showing pneumopericardium with pneumomediastinum, pneumothorax, hemothorax, and pulmonary contusion after severe chest trauma[1]
ICD-10 I31.9, P25.3, S26.8
ICD-9 770.2, 860.1
MeSH D011026

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

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Overview

Pneumopericardium is a medical condition where air enters the pericardial cavity and a well-recognized clinical and radiologic entity. [2] It can be congenital, or introduced by a wound.

Differential Diagnosis of Underlying Causes

Diagnosis

Chest X-Ray

  • The heart partially or completely surrounded by air, with the pericardium sharply outlined by air density on either side.
  • Pneumopericardium can usually be distinguished from pneumomediastinum, since air in the pericardial sac should not rise above the anatomic limits of the pericardial reflexion on the proximal great vascular pedicle. Also on radiographs obtained with the patient in the decubitus position, air in the pericardial sac will shift immediately, while air in the mediastinum will not shift in a short interval between films.
  • Occasionally, it may not be possible to distinguish pneumopenicardium from pneumomediastinum on plain film.

Examples

Pneumopericardium


Pneumopericardium


References

  1. Konijn AJ, Egbers PH, Kuiper MA (2008). "Pneumopericardium should be considered with electrocardiogram changes after blunt chest trauma: a case report". J Med Case Reports. 2: 100. doi:10.1186/1752-1947-2-100. PMC 2323010. PMID 18394149.
  2. SE Mirvis, M Indeck, RM Schorr, and JN Diaconis. Posttraumatic tension pneumopericardium: the "small heart" sign. Radiology 1986 158: 663-669.

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Template:Certain conditions originating in the perinatal period Template:Injuries, other than fractures, dislocations, sprains and strains Template:SIB

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