Huge Dentigerous Cyst in the Maxillary Sinus: A Rare Case in Childhood.

Dentigerous cyst (DC) is the second most common type of odontogenic cyst. It is thought to have a developmental origin, arising from an anomaly in the reduced dental epithelium. Rarely seen in early childhood, DC is mostly prevalent among people aged between 20 and 40. The most common location of DC is the mandibular third molar, more rarely occurring in the maxillary sinus. Enucleation is the standard treatment. Herein, we report an 11-year-old boy with DC that developed into the maxillary sinus, measuring 5×2.5×1.7 cm. We also present an evaluation of the diagnosis and treatment of this type of DC.