Pericardial cysts are rare clinical entities mostly asymptomatic and detected incidentally. Albeit rare, many complications reported extend from cough dyspnea to sudden cardiac death. The case presented herein is the first large localized hemorrhagic pericardial cyst mimicking an acute coronary syndrome (ACS) with intense chest pain, precordial ST-segment elevation, elevated troponin. Following...

Mycoplasma pneumoniae (M. pneumoniae) primarily causes respiratory tract infections in persons aged 5-20 years. Tracheobronchitis and bronchopneumonia are the most commonly recognized clinical symptoms associated with M. pneumoniae infection. Complications of this infection are unusual; in particular, cardiac involvement is very rare and is generally accompanied by pneumonia. Nonrespiratory ill...

high. We intend to continue follow-up for the next two to five years, while looking for evidence of any long-term sequelae. The utility of endomyocardial biopsy after smallpox vaccination is uncertain. Given the inherent risks and low diagnostic yield of endomyocardial biopsy (1,4), as well as the high likelihood of full objective recovery after smallpox vaccine-associated myopericarditis (3), ...