Púrpura oral no trombocitopénica traumática exacerbada por condición metabólica

Introduction: the term purpura clinically translates into flat or raised lesions of violet, purple or red- brown color determined by extravasation of blood in a localized region of the skin or mucosa. Objective: To present a clinical case of purpura located in the oral mucosa, and probably exacerbated by the patient’s metabolic condition. Methods: The description of the clinical case was made under the CARE declaration. Additionally, a review of the literature of the last 10 years on the subject was carried out through manual search in oral medicine texts and digital search in the scientific bases MEDLINE/PubMed, Cochrane, Scielo, ScienceDirect and Google Scholar. Case report: 51 year old woman, partially edentulous and medi- cated with metformin due to a diagnosis of type II diabetes mellitus, who recorded non-palpable red- violet lesions, negative vitro-pressure, compatible with petechiae and vibex, distributed on the floor of the mouth, ventral face and lateral surfaces of the tongue associated with chronic trauma. Laboratory tests pointed to a scenario of poor metabolic control. Conclusions: Traumatic non-thrombocytopenic purpura is diagnosed, probably exacerbated by a metabolic condition. A histopathological study is required to confirm.