Online training and self-assessment in the histopathologic classification of endocervical adenocarcinoma and diagnosis of pattern of invasion: Evaluation of participant performance Journal Article


Authors: Park, K. J.; Cabrero, I. A.; Fadare, O.; Hoang, L.; Kiyokawa, T.; Oliva, E.; Parra-Herran, C.; Rabban, J. T.; Roma, A.; Singh, N.; Soslow, R.; Stolnicu, S.; Huvila, J.; Leung, S.; Gilks, C. B.
Article Title: Online training and self-assessment in the histopathologic classification of endocervical adenocarcinoma and diagnosis of pattern of invasion: Evaluation of participant performance
Abstract: Histopathologic classification of endocervical adenocarcinomas (EAC) has recently changed, with the new system based on human papillomavirus (HPV)-related morphologic features being incorporated into the 5th edition of the WHO Blue Book (Classification of Tumours of the Female Genital Tract). There has also been the introduction of a pattern-based classification system to assess invasion in HPV-associated (HPVA) endocervical adenocarcinomas that stratifies tumors into 3 groups with different prognoses. To facilitate the introduction of these changes into routine clinical practice, websites with training sets and test sets of scanned whole slide images were designed to improve diagnostic performance in histotype classification of endocervical adenocarcinoma based on the International Endocervical Adenocarcinoma Criteria and Classification (IECC) and assessment of Silva pattern of invasion in HPVA endocervical adenocarcinomas. We report on the diagnostic results of those who have participated thus far in these educational websites. Our goal was to identify areas where diagnostic performance was suboptimal and future educational efforts could be directed. There was very good ability to distinguish HPVA from HPV-independent adenocarcinomas within the WHO/IECC classification, with some challenges in the diagnosis of HPV-independent subtypes, especially mesonephric carcinoma. Diagnosis of HPVA subtypes was not consistent. For the Silva classification, the main challenge was related to distinction between pattern A and pattern B, with a tendency for participants to overdiagnose pattern B invasion. These observations can serve as the basis for more targeted efforts to improve diagnostic performance.
Keywords: classification; system; who; clinical-implications; endocervical adenocarcinoma; intraepithelial lesion; mucin-producing carcinoma; silva pattern; iecc classification
Journal Title: International Journal of Gynecological Pathology
Volume: 40
Issue: Suppl. 1
ISSN: 0277-1691
Publisher: Lippincott Williams & Wilkins  
Date Published: 2021-03-01
Start Page: S14
End Page: S23
Language: English
ACCESSION: WOS:000655694000003
DOI: 10.1097/pgp.0000000000000757
PROVIDER: wos
PMCID: PMC7969175
PUBMED: 33570861
Notes: Article -- Source: Wos
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  1. Kay Jung Park
    305 Park
  2. Robert Soslow
    793 Soslow