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Published in: European Journal of Nuclear Medicine and Molecular Imaging 11/2012

01-11-2012 | Original Article

Prognostic value of pretreatment 18F-FDG PET/CT and human papillomavirus type 16 testing in locally advanced oropharyngeal squamous cell carcinoma

Authors: Nai-Ming Cheng, Joseph Tung-Chieh Chang, Chung-Guei Huang, Din-Li Tsan, Shu-Hang Ng, Hung-Ming Wang, Chun-Ta Liao, Chien-Yu Lin, Cheng-Lung Hsu, Tzu-Chen Yen

Published in: European Journal of Nuclear Medicine and Molecular Imaging | Issue 11/2012

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Abstract

Purpose

Human papillomavirus type 16 (HPV-16) positivity is associated with favourable survival in oropharyngeal squamous cell carcinoma (OPSCC). We report here a study of the prognostic significance of 18F-FDG PET/CT functional parameters and HPV-16 infection in OPSCC patients.

Methods

We retrospectively analysed 60 patients with stage III or IV OPSCC who had had a pretherapy 18F-FDG PET/CT scan and had completed concurrent chemoradiotherapy (n = 58) or curative radiotherapy (n = 2). All patients were followed up for ≥24 months or until death. We determined total lesion glycolysis (TLG) and the maximal standardized uptake values (SUVmax) of the primary tumour and neck lymph nodes from the pretherapy 18F-FDG PET/CT scan. Optimal cut-offs of the 18F-FDG PET/CT parameters were obtained by receiver operating characteristic (ROC) curve analyses. Pretherapy tumour biopsies were studied by polymerase chain reaction to determine HPV infection status.

Results

The pretherapy tumour biopsies were positive for HPV-16 in 12 patients (20.0 %). Cox regression analyses revealed HPV-16 positivity and tumour TLG >135.3 g to be independently associated with overall survival (p = 0.027 and 0.011, respectively). However, only tumour TLG >135.3 g was independently associated with progression-free survival, disease-free survival and locoregional control (p = 0.011, 0.001 and 0.034, respectively). A scoring system was formulated to define distinct overall survival groups using tumour TLG and HPV-16 status. Patients positive for HPV-16 and with tumour TLG ≤135.3 g experienced better survival than those with tumour TLG >135.3 g and no HPV infection (p = 0.001).

Conclusion

Tumour TLG was an independent predictor of survival in patients with locally advanced OPSCC. A scoring system was developed and may serve as a risk stratification strategy for guiding therapy.
Appendix
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Metadata
Title
Prognostic value of pretreatment 18F-FDG PET/CT and human papillomavirus type 16 testing in locally advanced oropharyngeal squamous cell carcinoma
Authors
Nai-Ming Cheng
Joseph Tung-Chieh Chang
Chung-Guei Huang
Din-Li Tsan
Shu-Hang Ng
Hung-Ming Wang
Chun-Ta Liao
Chien-Yu Lin
Cheng-Lung Hsu
Tzu-Chen Yen
Publication date
01-11-2012
Publisher
Springer-Verlag
Published in
European Journal of Nuclear Medicine and Molecular Imaging / Issue 11/2012
Print ISSN: 1619-7070
Electronic ISSN: 1619-7089
DOI
https://doi.org/10.1007/s00259-012-2186-9

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