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.
Hunt
S J
SJ
Department of Pathology, St. Joseph's Hospital and Medical Center, Phoenix, Arizona.
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