Are histomorphologic changes in the fimbrial ends more to blame for primary epithelial ovarian carcinomas than initially thought?

Yıl 2022, Cilt: 35 Sayı: 1, 23 - 30, 31.01.2022

Gokce Askan Ipek Erbarut Seven Naziye Ozkan Funda Eren

https://doi.org/10.5472/marumj.1056169

Öz

Objective: To investigate the relationship between primary epithelial ovarian tumors and histomorphologic changes in the fimbrial ends (FEs) of the fallopian tubes.
Materials and Methods: Twenty-eight serous carcinomas (SCs) and 12 non-serous carcinomas (NSC) were studied. Ovarian and concomitant invasive tumors in FEs were labeled with PAX8, WT-1 and Calretinin.
Results: Eighty-six percent of SCs were high grade (HG), 14% of were low grade (LG). 71% of SCs (85% HG, 15% LG) had concomitant invasive tumors in FEs. Serous tubal intraepithelial carcinoma (STIC) was seen in 29% (75% HG, 25% LG), all had concomitant invasive tumors in FEs. The presence of tumors in FEs was statistically significant in SCs (p=0.03). 33% of NSCs had concomitantly invasive tumors in FEs. 67% of endometrioid tumors, 33% of clear cell carcinomas had endometriosis. 50% of mucinous tumors, 67% of endometrioid tumors, 50% of benign Brenner tumors had Walthard nest. Except for mucinous carcinomas, ovarian and concomitant invasive tumors in FEs displayed tubal phenotype (Calretinin-/PAX8+).
Conclusion: The results of our study suggest that, invasive tumors and STIC in FEs are not only limited to HGSCs, but can also be seen in LGs. FEs could also be a site of origin for NSCs, however, future studies with more cases are needed.

Anahtar Kelimeler

Primary epithelial ovarian tumors, fallopian tubes, fimbrial ends, histomorphologic changes, early detection

Kaynakça

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