-year-old woman was admitted to the hospital because of episodes of
ventricular tachycardia. She had a history of myocardial infarction in
1973 and underwent coronary artery bypass surgery in 1993.
Transesophageal echocardiography revealed grade 3 mitral valve
regurgitation. A left and right cardiac catheterization was performed
with insertion of a Swan-Ganz catheter via the right femoral vein.
Shortly after inflating the balloon in the wedge position, the patient
experienced an episode of hemoptysis of approximately 50 mL. The
pulmonary artery pressure was 40/20 mm Hg (mean, 21 mm Hg). Because of
oxygen desaturation, she was transferred to the ICU. The chest
radiograph then obtained showed a well-circumscribed rounded mass in
the right middle lung zone (Fig 1
), which was not seen on prior chest radiographs.