WebMD explains what to expect during a fine needle aspiration – a type of biopsy that can help diagnose or rule out cancer.

THE diagnosis of pericardial effusion and pericarditis is often difficult. The history and physical signs can be misleading, and the electrocardiogram is frequently equivocal. A high index of ...

A simple and relatively safe technic for the aspiration of pericardial fluid has been devised. A polyethylene catheter is introduced into the pericardial sac through a paracentesis needle, . . .