[High-grade lesions probability in ASCUS HPV positive patient according to HPV type].

Objectives: The aim of our study was to assess the proportion of high-grade histological lesions, according to HPV type, in patients referred for colposcopy involving a positive HPV-HR test and ASC-US cytology.

Methods: This is a retrospective descriptive study of asymptomatic patients aged 25 to 65 with a positive HPV-HR test and ASC-US cytology. Data were collected at the Nord Franche-Comté Hospital from September 2019 to February 2022. The primary outcome was the proportion of high-grade histological lesions in patients with ASC-US cytology combined to HPV 16 or 18 (associated or not with other HPV type), compared with HPV no 16 no 18.

Results: Among the 298 patients included, 67% were HPV no 16 no 18, 22% HPV 16 associated or not with others and 11% HPV 18 associated or not with others. We found significantly fewer high-grade lesions in patients with ASC-US cytology and HPV no 16 no 18 than in patients with HPV 16 or 18 (8.5% versus 22.7%, P<0.01). In patients presenting an ASC-US cytology with HPV no 16, no 18: 53% of the biopsies found no histological lesion compared with 30% for the other HPVs (P<0.01).

Conclusions: We have highlighted the reality of colposcopists: a high ratio of normal coloscopy associated with normal or low-grade biopsies, in patients with a positive HPV-HR test no 16, no 18 and ASC-US cytology.