Mitral annular tumors: report of two cases in childhood.

Primary tumors of the mitral valve are extremely rare especially in the pediatric age group; only a few cases have been reported previously. The clinical appearance of the tumor may mimic other pathological findings of heart structures or remain asymptomatic. We describe two different benign primary cardiac tumors, which were hemangioma and myxoma originating from the anterior annulus of the mitral valve and presenting with an unusual clinical course in two children. Both tumors were resected successfully with mitral valve conservation and there was no recurrence at 6-month and 1-year follow-ups.