title: Granulomatous rosacea-like demodicidosis.
abstract: Demodicidosis may present as pityriasis folliculitis, papulopustular lesions, rosacea-like eruptions, and granulomatous rosacea-like eruptions. We report a case of demodex granuloma presenting with recurrent granulomatous rosacea-like papules on the face in a middle-aged woman. The diagnosis of demodicidosis was made by finding extrafollicular mites in the perifollicular inflammatory infiltrate. The papules resolved after 3 weeks of systemic and topical metronidazole, and low-dose oral prednisolone therapy. In summary, demodex granuloma may be mistaken for granulomatous rosacea-like papules. Correct diagnosis can be facilitated by finding extrafollicular demodex mites in skin biopsy specimens.
authors.affiliation: Department of Dermatology, College of Medicine, National Cheng Kung University, Tainan, Taiwan. yylee@mail.ncku.edu.tw
authors.forename: Julia Yu-Yun
authors.initials: JY
authors.lastname: Lee
authors.forename: Chao-Kai
authors.initials: CK
authors.lastname: Hsu
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D005145:Face; D005260:Female; D006099:Granuloma / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D008924:Mite Infestations / Q000150:complications / Q000473:pathology*; D012393:Rosacea / Q000175:diagnosis; D012867:Skin / Q000473:pathology*