Diagnostic Pitfalls of Dental Follicles and Cyst-like Lesions in Juvenile Patients: An Early Odontogenic Myxoma Mimicking a Follicular Cyst.

The occurrence of cysts and tumors in pediatric patients varies across different age groups. Follicular and dentigerous cysts are among the most common lesions. However, typical odontogenic tumors in juvenile patients are not frequently observed. Early stages of cyst and odontogenic tumor development might exhibit some similar characteristics due to the presence of unerupted teeth or their relationship with various stages of tooth formation and eruption. Many small lesions are discovered accidentally on routine orthopantomography (OPG), while the bigger ones manifest themselves as bone swelling, cortical perforation, or displacement and mobility of teeth. Each odontogenic tumor has characteristic clinical and radiological features. Biopsy of larger lesions, or incisional biopsy of smaller lesions, allows detailed histopathological evaluation to determine tumor type and growth behavior and guide appropriate treatment planning. In some cases, atypical signs on OPGs, like asymmetry in dental follicles, occurrence of round or oval bone lesions near impacted or retained teeth, and visibility of irregular radiolucent, radiopaque, or mixed jawbone lesions, might suggest the occurrence of some possible odontogenic tumor in juvenile patients. Each case should be handled individually. In this case, we demonstrate how atypical appearances of dental follicles on panoramic radiographs may not correspond with cone-beam computed tomography findings and may indicate the early stages of odontogenic myxoma in a juvenile patient.