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February 1, 2011
Perforating Granuloma Annulare is a rare form of Granuloma Annulare which I occasionally encounter in my The Woodlands dermatology and Conroe dermatology offices. Clinically, Perforating Granuloma Annulare appears as red papules with a keratotic core extruding from the center of each lesion. Essentially, the degenerated collagen in the dermis is being extruded through the epidermis and appears as a keratotic core.
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