Case Report: Possible spatially-distinct de novo invasive cervical carcinoma in the setting of isolated persistent HPV16 after ALA-PDT-mediated histological clearance of CIN3 - Summary - MDSpire
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Case Study: Potentially Spatially-Separated De Novo Invasive Cervical Carcinoma Following Isolated Persistent HPV16 After Histological Clearance of CIN3 via ALA-PDT

  • By

  • Huihui Cai

  • Yanci Che

  • Yutong Liu

  • Jing Wang

  • Tingting Ma

  • Rui Yao

  • September 8, 2026

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Objective:

To document a case of invasive cervical carcinoma arising after histological remission of CIN3 in a patient with persistent HPV16 infection.

Approach:
  • Method: label
  • Method: text
Key Findings:
  • Persistent isolated HPV16 may retain long-term malignant potential after CIN3 resolution.
  • Invasive carcinoma was confirmed in a spatially distinct area from the original CIN3 lesions.
Interpretation:

The findings suggest a potential link between persistent HPV16 and de novo cervical carcinoma, although the possibility of pre-existing multifocal disease remains.

Limitations:
  • The case is based on a single observational report without molecular evidence of viral integration.
  • Lack of longitudinal molecular data prevents verification of viral integration events.
Conclusion:

Risk-stratified intensified surveillance is necessary for patients with persistent HPV16 after CIN3 treatment, and adherence to follow-up is crucial to prevent advanced disease.

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