Oral facial digital syndrome

Area of Science:

• Medical Genetics
• Developmental Biology
• Neurology

Background:

• Oral Facial Digital Syndrome (OFDS) comprises a group of rare genetic disorders characterized by malformations of the face, mouth, and digits.
• OFDS Type I and Type VI are distinct subtypes with overlapping, yet unique, phenotypic presentations.
• Cerebellar anomalies, including Dandy-Walker malformation, can occur in certain genetic syndromes.

Purpose of the Study:

• To describe a unique case of a female infant presenting with features suggestive of both OFDS Type I and OFDS Type VI.
• To investigate the phenotypic overlap between OFDS Type I and OFDS Type VI in a single patient.
• To discuss the implications for the genetic classification of Oral Facial Digital Syndromes.

Main Methods:

• Clinical case report.
• Detailed phenotypic assessment including facial, oral, and digital examination.
• Neuroimaging (MRI) to evaluate cerebellar and brain structures.

Main Results:

• The infant exhibited features consistent with Oral Facial Digital Syndrome Type I.
• Associated cerebellar anomalies, specifically Dandy-Walker malformation, were identified.
• The combined phenotype suggests a potential presentation of OFDS Type VI.

Conclusions:

• The presented case highlights significant phenotypic overlap between OFDS Type I and OFDS Type VI.
• This overlap raises questions regarding the distinct genetic etiologies of these OFDS subtypes.
• The unique pattern of abnormalities warrants further investigation into the genetic basis and classification of Oral Facial Digital Syndromes.