ArticleHead and neck pathology2024
Uncommon and Challenging Phenotypes of High-Risk Human Papillomavirus-Associated Head and Neck Carcinomas Revealed by High-Throughput Studies.
Article in Head and neck pathology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Diagnostic Accuracy of p16 Immunohistochemistry as a Marker of High-Risk HPV in Invasive Laryngeal Squamous Cell Carcinoma: A Systematic Review.Medicina (Kaunas, Lithuania) · 2026Pooled it
- Article
- Clinicopathologic and Molecular Characterization of SMARCB1-Deificient Sinonasal Carcinomas -A Systematic Study from a Single Institution Cohort.Head and neck pathology · 2025Article
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13 authors.
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Abstract
backgroundHPV- associated squamous cell carcinoma (SCC) is uncommon in non-oropharynx sites and not well characterized. This study aims to investigate uncommon phenotypes of HPV-associated head and neck carcinoma, the prevalence and morphologic spectrum of HPV-associated SCC in the oral cavity, larynx and hypopharynx.
methodP16 immunostaining and HPV E6/7 in situ hybridization (ISH) were performed on tissue microarrays comprised of SCCs from different anatomic sites: oropharynx (n = 270), hypopharynx (n = 52), oral cavity (n = 95) and larynx (n = 123). Tumors were classified as HPV-associated based on a positive E6/7 ISH testing. RNA sequencing was performed on several selected cases.
result66% oropharynx SCCs (OPSCCs) were HPV-associated; all were p16/HPV testing concordant except one which was p16 negative. The p16-/HPV + OPSCC resembled similar gene expression signature with p16+/HPV + OPSCCs by transcriptome analysis. 6/95 (6%) oral cavity SCCs were HPV-associated, all from male patients and 5/6 (83%) arose from the floor of mouth. Morphologically, 3/6 (50%) showed keratinizing SCC and 5/6 (83%) demonstrated HPV-associated squamous dysplasia in adjacent mucosa. 1/123 (less than 1%) larynx SCCs and 0/52 hypopharynx SCCs were HPV-associated.
conclusionAlthough uncommon, p16 negative HPV-associated OPSCC can occur, emphasizing the importance of judicious HPV testing. The morphology of HPV-associated oral cavity SCCs may deviate from prototypic nonkeratinizing SCC, making them difficult to recognize. Presence of HPV-associated squamous dysplasia could serve as a morphologic clue.
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