Epithelial trophoblastic tumor associated with in situ squamous cell carcinoma of the cervix

Abstract

Epithelioid trophoblastic tumors are rare neoplasias that develop from the neoplastic transformation of chorionic-type intermediate trophoblasts. They show a wide spectrum of differential diagnoses. The authors describe a case of epithelioid trophoblastic tumor with atypical presentation in a 26-year-old patient that had recently undergone conization for in situ squamous cell carcinoma of the uterine cervix. The histopathology, immunohistochemistry and differential diagnoses of the lesion are also discussed. No similar case had been reported in the medical literature and it is an example of the hindrances to the diagnosis of epithelioid trophoblastic tumors.