title: Gnatophyma--a rare form of rosacea.
abstract: Phyma is the last stage of rosacea and is due to chronic inflammation and edema. It can affect nose (rhinophyma), chin (gnatophyma), forehead (metophyma), ears (otophyma) and eyelids (blepharophyma). Rhinophyma is the most frequent location and there are few reports about gnatophyma. We report the case of a female patient, 41 years old, who had an infiltrated, erythematous, edematous plaque around the chin and lower lip for two years. Histopathology showed perivascular lymphocytic infiltrate, hypertrophied follicles and sebaceous glands, dilated vessels and fibrosis. She was treated with oral tetracycline, oral ivermectin and metronidazole cream with a satisfactory response. The clinical, histopathological and therapeutic response correlation confirmed the diagnosis of gnatophyma, a rare variant of phyma.
authors.affiliation: University of Santo Amaro (Universidade de Santo Amaro - UNISA) - Sao Paulo (SP), Brazil. aninhalisboa@hotmail.com
authors.forename: Ana Carolina Lisboa
authors.initials: AC
authors.lastname: de Macedo
authors.forename: Fernanda Dias Pacheco
authors.initials: FD
authors.lastname: Sakai
authors.forename: Rossana Cantanhede Farias
authors.initials: RC
authors.lastname: de Vasconcelos
authors.forename: Artur Antonio
authors.initials: AA
authors.lastname: Duarte
mesh_terms: D000328:Adult; D002680:Chin; D005148:Facial Dermatoses / Q000473:pathology*; D005260:Female; D006801:Humans; D008047:Lip Diseases / Q000473:pathology*; D012393:Rosacea / Q000473:pathology*