Adenomatoid odontogenic tumors are uncommon benign odontogenic lesions.
We treated a 29-year-old pregnant woman with an adenomatoid odontogenic tumor in her left molars. She visited the otolaryngology hospital complaining of left nasal obstruction. Because she was pregnant at that time, a CT was obtained after delivery, which revealed the tumor with many small calcifications in her left maxillary sinus, and the tumor included an impacted tooth. She visited our hospital for operation. First, we performed endoscopic biopsy which revealed the diagnosis of adenomatoid odontogenic tumor. We resected the tumor by making incisions in the canine fossa. Histopathological examination of the resected tumor confirmed the diagnosis of adenomatoid odontogenic tumor. Until now, three years after the surgery, she has shown no evidence of recurrence.
