Who Classification Of Skin Tumours -

: 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).

: Updates focus on high-risk subtypes. Sarcomatoid differentiation is now the primary acknowledged uncommon subtype of Squamous Cell Carcinoma (SCC).

: A new chapter focusing on the adverse prognostic implications of systemic cancers metastasizing to the skin. WHO Classification of Skin Tumours

: Entities are now generally listed in order from benign to malignant within each section to better reflect their neoplastic progression and clinical aggressiveness.

: Continues to be categorized separately from traditional SCC. 3. New Sections & Provisional Entities : This term is now used for "intermediate"

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This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more : A new chapter focusing on the adverse

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