Histopathologic and immunohistochemical evaluation of blood vessels in complete and partial hydatidiform mole.

Objective: To assess 46 cases diagnosed as complete and partial hydatidiform mole in regard to their histopathologic aspects according to current World Health Organization (WHO) criteria and to determine whether their immunohistochemical features are related to the presence of blood vessels.

Study Design: An observational, descriptive study was done on the histopathologic and immunohistochemical findings of 46 molar pregnancy cases seen at the Gynecological Pathology Department, Anatomopathological Institute, Central University of Venezuela, during 1990-2003. Data were obtained primarily from the tumor registry.