Abstract
A 35-year-old female patient presented an increase in volume in the region of teeth 47 and 48 with a 3-month evolution. Cone beam computed tomography (CBCT) revealed a hypodense image, unilocular with defined limits, causing external root and bone cortical resorption. With the diagnostic hypothesis of unicystic ameloblastoma, the surgical treatment was performed through marsupialization in which the teeth involved were extracted. After confirming the diagnosis through histopathologic examination, the volume was calculated with manual segmentation of the lesion in the first CBCT and in the examination performed 11 months after marsupialization. With satisfactory results, we opted for enucleation and curettage. After 1 year of follow-up the patient shows no signs of relapse, so it is believed that segmentation can be used in the control/monitoring of benign tumors and cystic lesions, providing security to decide when to perform surgical intervention.
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