Cervical cancers after human papillomavirus vaccination

Area of Science:

• Oncology
• Vaccinology
• Gynecology

Background:

• Quadrivalent human papillomavirus (HPV) vaccine use is widespread.
• Clinical trials indicate HPV vaccine efficacy against precancerous lesions from vaccine-targeted HPV types.
• Evidence for HPV vaccine effectiveness in preventing invasive cervical carcinoma remains limited.

Observation:

• Two cases of cervical carcinoma in young, vaccinated women are presented.
• One case involved cervical cancer unrelated to HPV infection.
• The second case involved cervical cancer attributed to an HPV subtype not covered by the vaccine.

Findings:

• The HPV vaccine's ability to prevent all invasive cervical carcinomas requires further long-term evaluation.
• These cases highlight the possibility of HPV infections not targeted by the current vaccine.
• Successful treatment and positive outcomes were achieved for both patients.

Implications:

• Vaccinated young women require comprehensive counseling on HPV vaccine efficacy and limitations.
• Lifelong cervical cancer screening is recommended for all women, even after vaccination.
• Further research is needed to assess the long-term prophylactic impact of HPV vaccination on cervical cancer incidence.