Keratoacanthoma, light micrograph

Keratoacanthoma, light micrograph

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Credit: BIOPHOTO ASSOCIATES/SCIENCE PHOTO LIBRARY

Caption: Keratoacanthoma. Light micrograph of a section through a keratoacanthoma nodule. The cause of these lesions is unknown but they have many features of a viral condition. A localised proliferation of squamous cells (light pink) have produced the nodule, with a central crater containing a mass of keratin (dark pink). The peripheral epidermis is normal and the dermis shows a chronic, heavy infiltration of inflammatory cells.

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Keywords: abnormal, anatomical, anatomy, biological, biology, cells, chronic inflammation, condition, dermal, dermatological, dermatology, dermis, disease, disorder, epidermal, epidermis, histological, histology, histopathological, histopathology, infiltrate, infiltrated, infiltration, inflamed, inflammatory cell, keratin, keratoacanthoma, layer, layers, lesion, light micrograph, light microscope, mass, medical, medicine, nodule, pathology, pink, proliferation, skin, squamous cell, unhealthy, white background

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