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- W2893068844 abstract "Objective Recently, the pattern of invasion in usual-type human papillomavirus-associated endocervical adenocarcinoma (AC) was put forward as a novel variable to select patients with favourable prognosis. Based on destructiveness of stromal invasion, three patterns were proposed: A – no destructive stromal invasion, B – focal destructive stromal invasion, and C – diffuse destructive stromal invasion. We aimed to independently validate the clinical significance of this classification-system in 82 AC patients, and explored associations between invasion pattern and somatic mutations. Methods All patients surgically treated for FIGO stage IB-IIA usual type AC (1990–2011, n = 82) were retrospectively reviewed and classified into pattern A, B or C. Additional immunohistochemical analyses were performed for p53, MSH6, and PMS2. Moreover, previously obtained data on somatic hotspot mutations in 13 relevant genes was integrated. Results Of 82 AC, 22% showed pattern A, 37% pattern B, and 41% pattern C. Significant differences were observed between invasion patterns and tumour size, depth of invasion (DOI), lymph-vascular invasion (LVI), and lymph-node metastasis. Significantly fewer mutations were present in tumours with pattern A morphology (p = 0.036). All pattern A patients survived (p = 0.002) without recurrent disease (p = 0.005). In multivariate regression analysis including tumour size, DOI, LVI, and lymph node metastasis, invasion pattern was a strong independent predictor for recurrence-free and disease-specific survival (HR 3.75, 95%CI 1.16–12.11, and HR 5.08, 95%CI 1.23–20.98, respectively). Conclusions We have independently validated the clinical significance of invasion patterns for usual type endocervical AC. Pattern A predicts excellent survival, and a clinical trial should prove safety of a more conservative treatment for these patients." @default.
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- W2893068844 date "2018-11-01" @default.
- W2893068844 modified "2023-10-16" @default.
- W2893068844 title "Independent validation of the prognostic significance of invasion patterns in endocervical adenocarcinoma: Pattern A predicts excellent survival" @default.
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- W2893068844 doi "https://doi.org/10.1016/j.ygyno.2018.09.013" @default.
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