Case Report: Dentigerous cyst marsupialization for a child with Hunter's syndrome [version 1; peer review: 1 approved, 1 approved with reservations, 1 not approved]

Hunter's syndrome or mucopolysaccharidosis (MPS) type II is an inherited disorder caused by enzyme iduronate-2-sulfatase deficiency. It is characterized by involvement of the nervous, cardiovascular, respiratory, and musculoskeletal systems, along with numerous oral manifestations. This is a case report of an eight year-old girl diagnosed with Hunter's syndrome, who was referred to the Pediatric Dentistry Department, Faculty of Dentistry, Cairo University with a chief complaint of hard swelling related to the lower left posterior area. Radiographic examination revealed well defined corticated radiolucency surrounding an unerupted lower left first molar. Aspiration was done and cytopathologic examination revealed cystic fluid mixed with blood. The case was diagnosed as a dentigerous cyst. Cyst marsupialization was done under general anaesthesia. From this case report we concluded that in Hunter's syndrome patients more conservative approaches are more valuable. Regular dental follow up is advised to maintain good oral hygiene, and to detect any complications as early as possible.