An extremely rare phenomenon: Angina bullosa hemorrhagica

Introduction: Angina bullosa hemorrhagica is a disease without a concomitant hematological or vesiculobullous disorder characterized by painless hemorrhagic bullae in the oral mucosa; it is rarely seen and has a good course. Case presentation: A 45-year-old female patient was admitted to the emergency department with a painless hemorrhagic bulla that suddenly appeared on the soft palate. A blister, 2 cm in diameter and dark red in color, was seen extending from the hard palate’s posterior to the soft palate. Nasolaryngoscopic evaluation was performed, and no additional hemorrhagic bulla was detected. She was discharged with the recommendation of oral mouthwash. Discussion: Solitary hemorrhagic bulla, suddenly occurring on the soft palate, is diagnostic for angina bullosa hemorrhagica. Some authors have reported that blisters in the posterior pharynx may progress to acute upper airway obstruction. Conclusion: Early nasolaryngoscopic evaluation in angina bullosa hemorrhagica is an excellent option to be considered by the emergency physician to prevent life-threatening situations.