Ovarian Intermediate Trophoblastic Tumors: Genotyping Defines a Distinct Category of Nongestational Tumors of Germ Cell Type
April 16, 2020 | Histopathology
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Trophoblastic neoplasms involving the ovary are uncommon and include gestational tumors, which are either metastatic from the uterus or ectopic and nongestational tumors, which include those of germ cell type/origin and somatic tumors with trophoblastic differentiation; in all these types, most are pure choriocarcinoma. Intermediate trophoblastic tumors, which include placental site trophoblastic tumor (PSTT) and epithelioid trophoblastic tumor (ETT), are rare in the ovary, with most assumed to be gestational; this is the only category formally recognized in 2014 World Health Organization (WHO) classification, likely due to few well-documented nongestational examples... You can view the entire article in the The American Journal of Surgical Pathology Blog.
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