[Clinicopathologic studies of 11 cases of primary XXXX ].

@entity1 @entity2695 @entity5 @entity1711 @entity5426 @entity4617 @entity1710 @entity4607
OBJECTIVE: To study the clinicopathologic features of primary @entity4617 . METHODS: Eleven cases of primary @entity5 collected from Fuwai Hospital during the period from 1983 to 2005 were enrolled into the study. The @entity5 were stained with @entity1710 and @entity1711 and Weigert-Van Gieson stain. Immunohistochemistry was also carried out in selected examples. RESULTS: Primary @entity4617 were uncommon and accounted for only 3% (11/426) of all primary @entity4617 . Most of them (10/11) were benign and @entity5 was rarely encountered (1/11). The @entity5 subtypes included papillary fibroelastoma (4/11), cavernous @entity2695 (4/11), @entity5 (1/11), @entity5426 (1/11) and @entity4607 (1/11). Of the 11 @entity5 studied, 4 involved the tricuspid valve, 4 involved the mitral valve, 2 involved the pulmonary valve and 1 involved the aortic valve. The diagnosis was established by preoperative echocardiography in 7 @entity1 . The remaining 4 cases were either misdiagnosed or undiagnosed. CONCLUSIONS: Preoperative diagnosis of primary @entity4617 can be difficult due to lack of detailed information related to this group of lesions. Although @entity4617 carry a good prognosis, the clinical outcome may be disastrous as a result of hemodynamic disturbances. Intraoperative frozen section examination is advisable for guiding proper surgical management.
