D2I2.
benign

Odontogenic keratocyst

An odontogenic keratocyst is a rare and but locally aggressive developmental cyst. It most often affects the mandible and most commonly presents in the third decade of life. Odontogenic keratocysts make up around 19% of jaw cysts. Despite its more common appearance in the bone region, it can affect soft .

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Plain-language summary adapted from Wikipedia. Not medical advice.