Keratoacanthoma, light micrograph

Keratoacanthoma, light micrograph

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Keratoacanthoma. Light micrograph of a section through a keratoacanthoma skin lesion. The surface layers are across top, including the hard keratin layer. The lesion consists of a localised proliferation of squamous cells that forms a cratered nodule. The nodule grows over several weeks before gradually disappearing. However, the unsightly nodule is often surgically removed. The cause of keratoacanthoma is unknown, although exposure to sunlight appears to be a factor. Magnification: x60 when printed at 10 centimetres wide. Human tissue.

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Keywords: abnormal, benign, condition, dermal, dermatological, dermatology, dermis, disease, disorder, epidermal, epidermis, growth, healthcare, histopathological, histopathology, human, human body, human tissue, keratin, keratinised, keratoacanthoma, lesion, light micrograph, light microscope, lm, mass, medical, medicine, no-one, nobody, nodule, non-cancerous, proliferation, section, sectioned, skin, squamous cell, surface, unhealthy, white blood cell

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