Two pyogenic granulomas arising in an epidermoid cyst.
Two pyogenic granulomas arising from the wall of an epidermoid cyst on the midback of a 62-year-old white man are reported. Histologically, each pyogenic granuloma was a polypoid sessile nodule that showed well-vascularized granulation tissue; edema; a mixed inflammatory infiltrate; an epidermal collarette; and a thinned, variably ulcerated epidermis. Although pyogenic granulomas may develop anywhere on the skin, this appears to be the first report of pyogenic granulomas in an epidermoid cyst.
Department of Pathology, St. Joseph's Hospital and Medical Center, Phoenix, Arizona.
S J
SJ
Hunt
D004814:Epidermal Cyst / Q000150:complications* / Q000473:pathology; D006099:Granuloma / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012871:Skin Diseases / Q000473:pathology*; D013492:Suppuration