Novel Findings in Floating-Harbor Syndrome and a Mini-Review of the Literature

Floating-Harbor Syndrome: A Systematic Literature Review and Case Report

Floating-Harbor syndrome (FHS) is an extremely rare genetic disorder connected with a distinctive facial appearance, various skeletal malformations, delayed bone age, and expressive language delays. It is caused by heterozygous mutations in the Snf2-related CREBBP activator protein (SRCAP) gene. The aim of this paper is to describe the case of a 14-year-old male with FHS, referring to a review of the literature, and to collect all reported symptoms. In addition, the orthodontic treatment of the patient is described. For this, the electronic databases PubMed and Scopus were searched using the keyword "Floating-Harbor syndrome". Similar to previous cases in the literature, the patient presented with short stature; a triangular face with a large bulbous nose; deep-set eyes and narrow eyelid gaps; a wide mouth with a thin vermilion border of the upper lip; and dorsally rotated, small ears. They also presented some less-described symptoms, such as macrodontia and micrognathia. Moreover, mild mental retardation, microcephaly, and delayed psychomotor development were found. On the basis of an extraoral, intraoral examination, X-rays, and CBCT, he was diagnosed with overbite, canine class I and angle class III, on both sides. To the best of our knowledge, orthodontic treatment of this disease has not been assessed in detail so far, so this is the first case.

Floating-Harbor syndrome and provision of dental treatment: A case report of the dental considerations

Floating-Harbor syndrome (FHS) is a rare genetic syndrome with limited cases reported in the medical literature. It is an autosomal dominant condition with affected individuals carrying a pathogenic variant of the SRCAP gene. FHS cases show individuals having consistent facial features and differing levels of intellectual disability, which can affect their ability to receive different anaesthetic modalities and have capacity to consent for dental treatment. This case report focuses on the clinical management of a young adult with FHS requiring dental care with different treatment modifications tailored to the patient's individual needs. Further research and awareness of this syndrome is required to fully understand its consistent oral findings and varying intellectual abilities, to ensure appropriate and timely treatment provision. MeSH: dentistry, Floating-Harbor syndrome (FHS), SRCAP gene, clinical management.