Female adnexal tumor of probable wolffian origin. A Distinctive Pathologic Entity

The clinicopathologic features of nine cases of a distinctive female adnexal tumor are presented. These tumors arose within the leaves of the broad ligament or hung on pedicles from it or the fallopian tube. Predominantly solid on gross examination, they were characterized microscopically by epithelial cells growing in diffuse, trabecular, and tubular patterns. Despite the presence of mitotic activity and capsular invasion, none of the tumors has proven to be malignant, although the follow‐up has been short in several of the cases. The exclusion of other possible origins and the microscopic features of the tumors are compatible with their development from wolffian remnants. The term “female adnexal tumor of probable wolffian origin” is considered most appropriate for these neoplasms.