, Volume 10, Issue 2, pp 81-82
Date: 04 Apr 2012

Giant left atrial thrombus caused by direct invasion of lung cancer

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A 60-year-old man came to our hospital with dyspnea and was found at the front of our hospital due to syncope. He had cystic lung disease and a 2-month history of progressively worsening dyspnea. He regained consciousness in the emergency room; however, his lips were cyanotic and oxygen saturation was 70 %. He was afebrile, with a blood pressure of 116/79 mmHg and a heart rate of 70 bpm. There was no heart murmur, moist rale, or peripheral edema. Chest radiography showed pulmonary edema with bilateral pleural effusion. Electrocardiogram showed biphasic pulmonary P waves with regular sinus rhythm. Echocardiography demonstrated that the left atrium (LA) was occupied by a giant mass (7.6 × 4.8 cm, Fig. 1a, b). The mass was of low density and homogenous, and the mobility was poor. It was unclear whether the mass had a stalk or was attached on the LA wall. Color Doppler method revealed that the mass disturbed the left ventricular inflow (Fig. 1c, d). The mass was presumed to be a myxoma bec ...