PDF: Keratoacanthoma in the cutaneous area of the upper lip: a case report


Keratoacanthoma (KA) is a common benign skin lesion composed of keratinized squamous cells that originates in the hair follicle.



The clinical and histopathological features of KA are similar to squamous cell carcinoma (SCC) of the skin, which often complicates a differential diagnosis. 

See also: PDF: Regional odontodysplasia: a case report








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