Pilomatrixoma : Gross Pathology
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![Skin_Pilomatrixoma3_resized.jpg](/slides-13/slides/Skin_Pilomatrixoma3_resized.jpg)
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Pilomatrixoma is usually a solitary, well-circumscribed, multilobular tumor located in the dermis. It may extend into the subcutaneous fat. Compressed connective tissue elements around the tumor may form a pseudocapsule. Mature lesions have a cheesy, yellow-white cut surface (due to keratin) with gritty consistency secondary to calcification. Image courtesy of: Ed Uthman, MD, Houston, TX.