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[Calcification of the tricuspid annulus].

Tricuspid annular calcification was observed on cardiac screening of a 50 year old woman with congenital valvular pulmonary stenosis and confirmed by angiography. At operation, the tricuspid annular calcification was palpable but there was no interference with valvular function. There was no associated disease process in this patient. Phosphate and calcium metabolism was normal. Tricuspid annular calcification is very rare: 7 other reported cases, aged 42 to 51 years old. All patients had right ventricular hypertension usually caused by pulmonary stenosis. Tricuspid valve function was normal in all cases. The pathogenesis is discussed: a premature degenerative process favored by right ventricular hypertension may be responsible. This would appear to be the first case to be published in France.