title: Infantile perianal protrusion: 13 new cases.
abstract: We report 13 girls, ages 4 months-5 years, affected by an infantile perianal protrusion located on the midline anterior to the anus in 8 patients and posteriorly in 3. A past personal history of constipation existed in six patients and anal fissures in three patients. In one of the five patients with recurrent anogenital erythema, a punch biopsy specimen revealed the histopathologic signs of lichen sclerosus et atrophicus (LS&A). In another two patients, infantile perianal protrusion was associated with clinical signs of genital LS&A. None of our patients had spontaneous reduction of infantile perianal protrusion during the follow-up period.
authors.affiliation: Department of Clinical and Experimental Medicine, Division of Dermatology, University of Bologna, Bologna, Italy. patrizi@med.unibo.it
authors.forename: Annalisa
authors.initials: A
authors.lastname: Patrizi
authors.forename: Beatrice
authors.initials: B
authors.lastname: Raone
authors.forename: Iria
authors.initials: I
authors.lastname: Neri
authors.forename: Antonietta
authors.initials: A
authors.lastname: D'Antuono
mesh_terms: D001003:Anal Canal / Q000002:abnormalities*; D002648:Child; D002675:Child, Preschool; D003248:Constipation / Q000209:etiology; D005260:Female; D006801:Humans; D007223:Infant; D018459:Lichen Sclerosus et Atrophicus / Q000150:complications; D010502:Perineum / Q000002:abnormalities*