A 9-year-and-2-month-old ...

A 9-year-and-2-month-old girl presented with a primary concern of swelling in the left mandibular premolar area and was referred to our medical center. She had no underlying health issues. On examination, her face appeared symmetrical, and inside her mouth, we observed swelling in the gum tissue from her left lower first baby molar to the left second baby molar area. She had a mixture of baby and permanent teeth, and her left lower first and second premolars had not erupted (Figure 1 b, c). A panoramic X-ray showed a well-defined, single-chambered radiolucent area in the region of her left lower premolars, extending from the back of her canine tooth to the front of her first molar's root. Her left first and second premolars, which were unerupted, were positioned lower than their healthy counterparts on the right side. The roots of both her left lower first and second baby molars had been absorbed up to the neck of the teeth (Figure 1 a). To confirm the location of the cystic lesion and its relationship with nearby anatomical structures, we conducted a cone-beam computed tomography (CBCT) scan. The treatment for the cystic lesion involved a surgical procedure known as marsupialization, during which we also removed the left lower first and second baby molars. Additionally, a biopsy was performed when the patient was 9 years and 2 months old to reduce the lesion size. Further histology was suggested to be performed.