A Supernumerary Valvula in the Pulmonary Semilunar Valve

A pentacuspid pulmonary valve is a rare congenital anomaly. The present report describes a case of pentacuspid pulmonary valve encountered during the autopsy of a 50-year-old man with a ruptured abdominal aortic aneurysm. The pentacuspid pulmonary valve had three relatively equal cusps and two smaller cusps. In this case, a tricuspid aortic valve was identified with normal structure and no evidence of heart failure was found clinically or pathologically.

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A case of a quadricuspid pulmonary valve in a Japanese female

Harada

Tsuboi

Hara

et al. 2015

Anat Sci Int

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A supernumerary cusp of the pulmonary valve was incidentally found in an 88-year-old Japanese female during a gross anatomy course. The valve was composed of three equal-sized leaflets and one smaller leaflet. The supernumerary leaflet was located between the anterior and right semilunar leaflets. This pulmonary valve consisted of four pulmonary aortic bulbs. The donated body was a female who had a past history of myocardial infarction and was diagnosed as having ischemic heart disease at the last admission. Tricuspid valve regurgitation and pulmonary hypertension were diagnosed on echocardiography. These findings were considered to have been caused by left heart failure and not by the quadricuspid pulmonary valve. This asymptomatic anatomical variation might have developed from a protrusion between the anterior and right swelling of the outflow tract during semilunar valve development.

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A Supernumerary Valvula in the Pulmonary Semilunar Valve

Cited by 3 publications

References 6 publications

A supernumerary cusp in the human pulmonary valve

A supernumerary cusp in the human pulmonary valve

A case of pentacuspid pulmonary valve

A case of a quadricuspid pulmonary valve in a Japanese female

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