How Does ETT Differ from Other Trophoblastic Tumors?
ETT differs from other trophoblastic tumors in several key ways. Histologically, it resembles squamous cell carcinoma rather than the more commonly seen syncytiotrophoblastic and cytotrophoblastic cells in other GTDs. Additionally, ETT has a unique immunohistochemical profile, often expressing p63 and cytokeratin, which can aid in differentiating it from other types.
