Introduction
Pneumopericardium, the presence of air in the pericardial cavity, is a
rare entity in adults that is typically described as a result of chest
trauma or iatrogenic complication of an invasive procedure. We present a
case of non-iatrogenic pneumopericardium manifesting after
pericardiocentesis, resulting from an underlying fistulous communication
between the distal trachea and pericardial cavity, as a complication of
a malignant glomus tumor of the trachea.