Asymptomatic primary pulmonary hypertension associated with liver cirrhosis.

We report a case of asymptomatic primary pulmonary hypertension associated with liver cirrhosis (type B) and portal hypertension found by chance during a preoperative Swan-Gantz catheterization study. Our experience suggests that the actual prevalence of primary pulmonary hypertension associated with liver cirrhosis may be greater than that previously reported. During the follow-up of liver cirrhosis with portal hypertension, we should consider primary pulmonary hypertension, even if the patient is free of symptoms, and a chest X-ray check may be necessary.