TP53 and neoplasm: On the basis of the pathologic findings and WT1/p53 immunohistochemistry, 4 of these cases were favored to represent independent primary endometrial and tubal tumors, 3 primary adnexal malignancies with endometrial spread/implantation, and 3 primary endometrial tumors with direct spread to the tubal isthmus; in 2 cases tumor origin remained uncertain.