Who Classification Of Skin Tumours -

: Continues to be categorized separately from traditional SCC. 3. New Sections & Provisional Entities

: This term is now used for "intermediate" lesions that exhibit borderline biological behavior but have specific molecular signatures (e.g., BAP1 inactivation or WNT pathway alterations). WHO Classification of Skin Tumours

: Progress in identifying gene fusions (e.g., YAP1::MAML2 in poromas) has enhanced diagnostic accuracy for sweat gland and hair follicle tumours. : Continues to be categorized separately from traditional

: A dedicated new section covers epithelial tumours derived specifically from the nail bed. WHO Classification of Skin Tumours

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: "Primary cutaneous NUT (Nuclear protein in testis) carcinoma" is included as a new provisional entity. 4. Adnexal & Soft Tissue Tumours