Abstract
The aim of this clinical survey was to assess variations in head and neck squamous cell carcinoma from an unknown primary (HNSCCUP) diagnostic practices across international centers. Clinical practice survey of experts nominated by Head and Neck Cancer International Group (HNCIG) and International Federation of Head and Neck Oncologic Societies (IFHNOS). Responses were received from 48/49 (97.9%) participants. Outpatient laryngoscopy, CT, and 18-FDG-PETCT were used always or most of the time by 81.3%, 77.1%, and 79.2%, but only 50% regularly used MRI. Unilateral and bilateral tonsillectomy were frequently performed in 41.6% and 27.1% of unilateral nodal disease, and in 18.8% and 52.1% for bilateral disease. Ipsilateral Tongue Base Mucosectomy (TBM) was used always or most of the time in 12.5% of unilateral and 6.3% of bilateral HNSCCUP. Bilateral TBM was used in 10.4% for unilateral and 22.9% for bilateral cancers. While there is broad agreement regarding examination and cross-sectional imaging, there are considerable differences in the surgical strategies used to identify occult primaries.
Published Version
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