Faculty Collaboration Database

Patterns of Nodal Metastases and Predictors of Occult Disease in HPV-Associated Oropharynx Cancer. Otolaryngol Head Neck Surg 2021 Mar;164(3):624-630

Date

09/09/2020

Pubmed ID

32894979

DOI

10.1177/0194599820951473

Scopus ID

2-s2.0-85090468080 (requires institutional sign-in at Scopus site)   4 Citations

Abstract

OBJECTIVE: For human papilloma virus-associated oropharynx squamous cell carcinoma (HPV+ OPSCC), we evaluated the distribution of neck-level lymph node (LN) metastasis, based on postsurgical histopathology, and the incidence of and risk factors for occult LN metastases, as these patterns need clarification for this newer cancer subset.

STUDY DESIGN: Retrospective cohort study.

SETTING: National Cancer Database (NCDB).

METHODS: We analyzed 2358 patients in the NCDB with HPV+ OPSCC who underwent neck dissection (ND) from 2010 to 2015. Incidence and distribution of LN metastases were calculated for neck levels I to V. Variables associated with occult LN metastasis were assessed by multivariate logistic regression.

RESULTS: In therapeutic NDs (n = 1935), the following proportions of positive LNs were found: level I, 9.0% (n = 175); level II, 81.0% (n = 1568); level III, 29.6% (n = 573); level IV, 11.9% (n = 230); and level V, 4.9% (n = 95). In elective NDs (n = 423), occult-positive LNs were found in 35.8% (n = 152), with the following proportions by level: level I, 3.3% (n = 14); level II, 26.9% (n = 114); level III, 8.7% (n = 37); level IV, 4.0% (n = 17); and level V, 0.2% (n = 1). The presence of occult LNs was independently associated with a Charlson-Deyo score of 1 (odds ratio, 2.26; 95% CI, 1.18-4.31; P = .014) and lymphovascular invasion (odds ratio, 5.91; 95% CI, 3.21-11.18; P < .001). Occult LN metastases were not significantly associated with pT classification, primary site, or number of LNs resected.

CONCLUSION: For HPV+ OPSCC, occult nodal disease is common. Therapeutic NDs should encompass at least levels II, III, and IV and possibly I, whereas elective NDs could possibly encompass levels II and III.

LEVEL OF EVIDENCE: 4.

Author List

Stanford-Moore GB, Ochoa E, Larson A, Han M, Hoppe K, Ryan WR

Author

Kathryn Hoppe MD Staff Physician in the Otolaryngology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Aged, 80 and over
Carcinoma, Squamous Cell
Female
Humans
Lymphatic Metastasis
Male
Middle Aged
Oropharyngeal Neoplasms
Papillomavirus Infections
Retrospective Studies
Young Adult