Recurrence risk of occult micrometastases and isolated tumor cells in early stage endometrial cancer: A case control study

Autor: Tara Castellano, Lewis Hassell, Rachel Conrad, Conner S. Davey, Sunam Husain, Justin D. Dvorak, Kai Ding, Camille Gunderson Jackson
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Gynecologic Oncology Reports, Vol 37, Iss , Pp 100846- (2021)
Druh dokumentu: article
ISSN: 2352-5789
DOI: 10.1016/j.gore.2021.100846
Popis: Objectives: To determine whether previously undetected occult micrometastasis (MM) or isolated tumor cells (ITC) is associated with increased recurrence odds in stage I-II endometrioid adenocarcinoma. Methods: Women with recurrent stage I/II EC who had complete pelvic and para-aortic were identified as the outcome of interest. A case-control study was designed with the exposure defined as occult MM/ITC not seen on original nodal pathology. Controls were found by frequency-matching in a 1:2 case control ratio. Original nodal slides were re-reviewed, stained and tested with immunohistochemical to detect occult MM/ITC and the odds of associated recurrence was calculated. Results: Of 153 included, 50 with and 103 without recurrence, there was no difference in age (p = 0.46), race (p = 0.24), stage (p = 0.75), FIGO grade (p = 0.64), lymphovascular space invasion (LVSI); p = 1.00, or GOG 99 high-intermediate risk (HIR) criteria (p = 0.35). A total of 18 ITC (11.8%) and 3 MM (2.0%) not previously identified were found in 19 patients. Finding occult MM/ITC was not associated with more lymph nodes (LN) removed (p = 0.67) or tumor grade (p = 0.48) but was significantly associated with stage (p
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