AI Article Synopsis
- The 5th Edition of the WHO Classification of Head and Neck Tumours shows few changes in nomenclature for ear and temporal bone lesions compared to previous editions, particularly in molecular pathogenesis.
- The rarity of ear and temporal bone tumours, along with limited biopsy material, results in scarce literature and a lack of large studies or standardized management approaches.
- There is an increase in the number of tumour entries from eleven to thirteen, with some lesions removed that were previously deemed non-specific, while ensuring better correlation of disease processes with clinical and imaging data.
Article Abstract
In the recently published 5th Edition of the World Health Organisation Classification of Head and Neck Tumours, there are relatively few changes to report in terms of nomenclature in lesions of ear and temporal bone and fewer developments in molecular pathogenesis in comparison to other sites, particularly in sinonasal tract. Ear and temporal bone tumours are rare and biopsy material is limited. As a result, resources in the literature are scarce with few large series, no controlled clinical trials and the approaches to staging and management are not standardised. New entities are difficult to characterise. The number of entries has, however, increased for tumours of the ear and temporal bone (thirteen) compared to the 4th Edition (eleven). Some lesions previously included in the 4th Edition considered to have no site-specific features have been excluded to be discussed elsewhere and other benign lesions that are specific to this site have been included. The tumours and tumour-like entities of ear and temporal bone are discussed here mindful that the chapter in the 5th edition better correlates disease processes with clinical information and imaging and as far as possible standardises nomenclature.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9018943 | PMC |
| http://dx.doi.org/10.1007/s12105-022-01450-9 | DOI Listing |
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