[Initial primary sarcoma of the pulmonary valve and trunk of the pulmonary artery].

Primary sarcomas arising from the trunk or branches of the pulmonary artery are exceedingly rare and usually diagnosed at autopsy. The authors report the case of a 31 year old man referred for investigation of recurrent syncope. Echocardiography, right ventriculography and the thoracic computed tomography led to early diagnosis of a pulmonary artery tumour and surgical resection.

[Right-left shunt caused by sarcoma of the right atrium].

A 70 year old woman was admitted for right ventricular failure and cyanosis of recent onset. Echocardiography showed a very large, homogenous, immobile, smooth-contoured mass filling the right atrium. Right atrial pressures were raised but the other intracardiac pressures were normal at catheterisation.