Oral manifestations after COVID-19 vaccination
A 38‐year‐old Thai woman developed painful oral lesions lasting over 8 weeks. The lesions appeared 1 week following the administration of the first dose of AZD1222 vaccine. Her extraoral examination was unremarkable. The intraoral examination revealed generalized desquamative epithelium, erythematous areas along the marginal gingivae and alveolar mucosa. Pseudomembranes, and erosions and ulceration on the buccal gingiva subjacent to the maxillary and mandibular teeth, and the right lingual dorsum could be seen. Furthermore, generalized desquamative epithelium of the alveolar mucosa of the anterior mandibular teeth as well as the right mandibular and left maxillary posterior molars extending to the mucobuccal folds were present. Erythematous areas also extended from the lingual gingiva of anterior mandibular teeth onto the floor of mouth. The histopathologic and direct immunofluorescence examination confirmed a diagnosis of pemphigus. After treatment with a potent topical steroid, fluo...