Blood cyst of the pulmonary valve in an adult: Report of a case and review of the literature

We report a case of a blood cyst originating from the pulmonary valve cusp of a 43-year-old Japanese woman with pulmonary stenosis. Cineangiography revealed a pedunculated tumor on the arterial surface of the pulmonary valve. It was successfully removed by a transpulmonary artery approach. The cyst...

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Bibliographic Details
Published in:Human pathology 1997-02, Vol.28 (2), p.252-255
Main Authors: Minato, Hiroshi, Manabe, Toshiaki, Masaki, Hisao, Kawahara, Yosuke
Format: Article
Language:English
Subjects:
Adult
Antigens, CD34 - analysis
Biological and medical sciences
Blood
blood cyst
cardiac tumor
Cardiology. Vascular system
Cysts - chemistry
Cysts - pathology
Cysts - surgery
Endothelium, Vascular - chemistry
Endothelium, Vascular - pathology
Female
Heart
Heart Diseases - pathology
Heart Diseases - surgery
Humans
Immunohistochemistry
Lectins - analysis
Medical sciences
Plant Lectins
pulmonary stenosis
pulmonary valve
Pulmonary Valve - pathology
Pulmonary Valve - surgery
Pulmonary Valve Stenosis - etiology
Tumors of the heart
von Willebrand Factor - analysis
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Summary:We report a case of a blood cyst originating from the pulmonary valve cusp of a 43-year-old Japanese woman with pulmonary stenosis. Cineangiography revealed a pedunculated tumor on the arterial surface of the pulmonary valve. It was successfully removed by a transpulmonary artery approach. The cyst contained old blood and calcified thrombi, and its wall consisted of collagenous fibrous tissue. Immunohistochemically, a monolayer of flat cells lining the cyst was confirmed as endothelium using antibodies to von Willebrand factor and CD34, as well as UEA-I lectin. To the best of our knowledge, blood cysts of the pulmonary valve are rare and only 10 such cases have been reported, including six pediatric cases. This case is the oldest and fifth adult patient with a blood cyst found on the pulmonary valve. A possible histogenesis is discussed.
ISSN:0046-8177
1532-8392
DOI:10.1016/S0046-8177(97)90116-7