Lesión liquenoide oral de difícil diagnóstico en paciente ex - afecto a cocaína: a propósito de un caso

Abstract

Oral lichenoid lesions (OLL) are considered a variation of Oral Lichen Planus (OLP) and can be recognized as a sepárate entity in itself or as an exacerbation of existing OLP. We report a male patient, 42, smoker, with a history of brain trauma and cocaine and alcohol use for 20 years. The patient is currently in recovery and has being medicated with phenytoin and pentoxifylline for 6 years. The patient attended the Diagnostic Service of the Faculty of Dentistry at the University of Cuenca, with severe oral pain with 7 days of evolution, which prevented him from eating. Stomatological examination showed erosive lesions surrounded by white reticular plaques at the hard palage level, gums and lip mucosa with skewed distribution. The histopathological diagnosis was not defin itive, but based on history, clin ¡cal, effective response to steroid treatment, and the results of immunological tests, it was determined as idiopathic oral lichenoid lesión. Because of the aberrant histological pattern, this type of lichenoid injury would be excluded from the categories established by the WHO for oral lichenoid reactions.