Human papillomavirus (HPV) is absent in branchial cleft cysts of the neck distinguishing them from HPV positive cystic metastasis.

Authors:
Lars Sivars
Lars Sivars
Karolinska Institutet
Sweden
Linnea Haeggblom
Linnea Haeggblom
Karolinska Institutet
Sweden
Cinzia Bersani
Cinzia Bersani
Karolinska Institutet
Eva Munck-Wikland
Eva Munck-Wikland
Karolinska University Hospital
Sweden
Tina Dalianis
Tina Dalianis
Karolinska Institutet
Sweden

Acta Otolaryngol 2018 Sep 15;138(9):855-858. Epub 2018 May 15.

b Department of Clinical Science, Intervention and Technology, Otorhinolaryngology Head and Neck Surgery , Karolinska University Hospital , Stockholm , Sweden.

Background: Distinguishing branchial cleft cysts (BCCs) from cystic metastases of a human papillomavirus (HPV) positive oropharyngeal squamous cell carcinoma (OPSCC) is challenging. Fine needle aspirates (FNAs) from cystic metastasis may be non-representative, while reactive squamous cells from BCC can be atypic. Based on cytology and with the support of HPV DNA positivity many centers treat cystic metastasis oncological and thus patients are spared neck dissection. To do so safely, one must investigate whether HPV DNA and p16 overexpression is found exclusively in cystic metastases and not in BCC.

Patients And Methods: DNA was extracted from formalin fixed paraffin embedded (FFPE) surgically resected BCCs from 112 patients diagnosed 2007-2015 at Karolinska University Hospital and amplified by PCR. A multiplex bead-based assay used to detect 27 HPV-types and p16 expression was analyzed by immunohistochemistry (IHC).

Results: All 112 BCCs were HPV DNA negative, and of 105 BCCs possible to evaluate for p16, none overexpressed p16.

Conclusions: HPV DNA and p16 overexpression were absent in BCCs. Lack of HPV DNA and p16 protein overexpression in BCCs is helpful to discriminate benign BCCs from HPV OPSCC metastasis. HPV testing definitely has a role in the diagnostics of cystic masses of the neck.

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http://dx.doi.org/10.1080/00016489.2018.1464207DOI Listing
September 2018
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References

(Supplied by CrossRef)
Article in Clin Cancer Res
Begum S et al.
Clin Cancer Res 2003

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