We report a case about an 81 year old healthy woman who has no past medical history.
She consulted a nearby doctor due to bilateral lower-extremity edema which appeared
one month ago. Thoracic echocardiography revealed a moderate to severe tricuspid valve
regurgitation (TR), and she consulted our hospital. There were no subjective symptoms,
however, systolic murmur was present. Moreover, jugular vein distention was present,
and, imaging diagnosis revealed the enlargement of inferior vena cava. Thus, we diagnosed
as right heart failure (HF). In echocardiography, no abnormal findings in left heart
structure were observed. On the other hand, a tumor of 34 × 16 mm in size was revealed
in the main pulmonary artery (mPA). The mPA was almost occupied by a tumor, and the
flow velocity of the pulmonary artery had been accelerated to 4 m/sec. Even with contrast
computed tomography, a tumor almost occupied the mPA. Therefore, we performed a tumor
extirpation to prevent sudden death and improve right HF. TR was alleviated and right
HF disappeared at postoperative. A pulmonary artery tumor is extremely rare, and there
are even few cases found through the diagnoses of right HF.
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