Three Cases of 'Morsicatio Labiorum'.

Author: Ho Song KANG ¹ ; Ha Eun LEE ; Young Suck RO ; Chang Woo LEE
Author Information

1. Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea.
Publication Type:Case Report
Keywords: Lip; Morsicatio labiorum; Sucking behavior
MeSH: Bites and Stings; Cheilitis; Diagnostic Errors; Lip; Mastication; Mouth Mucosa; Mucous Membrane; Sucking Behavior
From:Annals of Dermatology 2012;24(4):455-458
CountryRepublic of Korea
Language:English
Abstract: Morsicatio labiorum is a form of tissue alteration caused by self-induced injury, mostly occurring on the lips, and is considered to be a rarely encountered mucocutaneous disorder. Clinically, it is a macerated grey-white patch and plaque of the mucosa caused by external stimuli (self-induced injury) such as habitual biting, chewing, or sucking of the lip. It is often confused with other dermatological disorders involving the oral mucosa, which can lead to a misdiagnosis. We herein report three cases of morsicatio labiorum; two cases were misdiagnosed as exfoliative cheilitis at the time of the first visit.