Who Classification Of Skin Tumours 【2026 Update】

: Significant updates were made to dendritic cell and histiocytic neoplasms, as well as T-cell and NK-cell disorders.

: Continues to be categorized separately from traditional SCC. 3. New Sections & Provisional Entities WHO Classification of Skin Tumours

: Updates focus on high-risk subtypes. Sarcomatoid differentiation is now the primary acknowledged uncommon subtype of Squamous Cell Carcinoma (SCC). : Significant updates were made to dendritic cell

This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more New Sections & Provisional Entities : Updates focus

: A dedicated new section covers epithelial tumours derived specifically from the nail bed.

: The term "variant" is now reserved strictly for genetic alterations in DNA sequences, rather than being used to describe morphological subtypes.

: Each tumour entry includes clear "essential" diagnostic features and "desirable" criteria to improve diagnostic reliability worldwide. Major Clinical Updates by Category 1. Melanocytic Neoplasms