Angina Bullosa Hemorrhagica: Post-traumatic Swelling in the Oral Cavity—A Case Report

Angina bullosa hemorrhagica (ABH) is a rare, benign disorder characterized by one or multiple blood-filled blisters in the oral cavity (mainly soft palate, and sometimes oropharynx) with a sudden onset, that may lead to a potentially threatened airway. The most common hypothesis of its unknown origin is mild trauma. This lesion can easily be confused with other mucosal diseases or hematological disorders. Knowledge of the condition is important for correct diagnosis and treatment. Incision of the bulla, intubation, or even tracheotomy may be indicated. Here we present a case of 35-year-old woman with a complaint of dysphagia without dyspnea. During oral examination, a blue and/or purple blister on the soft palate was present. On endoscopic examination, an edematous uvula was observed, without other abnormalities. Eventually, the blister ruptured spontaneously and healed within one week without any sequelae.