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Updated: Apr 18, 2026

A Model for Perineural Invasion in Head and Neck Squamous Cell Carcinoma
Published on: January 5, 2017
Perineural space invasion in cervical cancer (FIGO IB1-IIB) accompanied by high-risk factors for recurrence
Joanna E Skręt-Magierło1, Paweł J Soja, Andrzej Skręt
1Department of Clinical Obstetrics and Gynecology, Rzeszow State Hospital, 35-055; Medical Department, Institute of Obstetrics and Emergency Medicine, University of Rzeszow, Rzeszow, Poland.
Background:
Perineural space invasion (PSI) represents a poor prognostic factor in various carcinomas. Studies on PSI in cervical cancer patients are scarce and report discrepant results regarding its incidence and prognostic value.
Aims:
The aim of the following study was to evaluate the occurrence rate and prognostic significance of parametrial PSI in patients cervical cancer (FIGO IB1-IIB), accompanied by high-risk factors for recurrence.
Materials And Methods:
We reviewed clinical records and pathology slides of patients with cervical cancer after radical hysterectomy. Only patients with at least one of following factors: Depth of invasion of ≥15 mm, parametrial and lymph node involvement, were enrolled in the study.
Results:
A total of 50 patients fulfilled the above mentioned criteria. Parametrial PSI was found in 9 (18%) patients (Group I), whereas the remaining 41 (82%) subjects constituted group II. The presence of PSI proved to correlate with the depth of invasion of ≥15 mm (P=0.006) and tumor size of ≥40 mm (P=0.01), as well as a more advanced stage of the disease (P=0.04). No statistically significant differences in recurrence-free survival rate between the two groups were observed.
Conclusions:
We were able to correlate parametrial PSI with the depth of invasion, tumor size and more advanced stage of the disease in early-stage cervical cancer with high-risk of recurrence. No association with a worse prognosis was observed.

