Focal Facial Dermal Dysplasia 1, Brauer Type; Ffdd1
Description
The focal dermal dysplasias (FFDDs) are a group of related developmental defects characterized by bitemporal or preauricular skin lesions resembling aplasia cutis congenita. Cervantes-Barragan et al. (2011) proposed a classification of FFDD in which there are 4 subtypes. FFDD1 (Brauer syndrome) is characterized by temporal skin depressions that resemble 'forceps marks.' Other facial anomalies, comprising sparse lateral eyebrows, distichiasis, and a flattened nasal tip, are usually mild. Inheritance is autosomal dominant. FFFD2 (Brauer-Setleis syndrome; {614973}) is characterized by bitemporal skin lesions with variable facial findings, including thin and puckered periorbital skin, distichiasis and/or absent eyelashes, upslanting palpebral fissures, a flat nasal bridge with a broad nasal tip, large lips, and redundant facial skin. Inheritance is autosomal dominant. FFDD3 (Setleis syndrome; {227260}) is characterized by the same facial features as FFDD2, but the inheritance is autosomal recessive. FFDD4 (OMIM ) is characterized by isolated, preauricular skin lesions with autosomal dominant or recessive inheritance (summary by Slavotinek et al., 2013).
Clinical Features
Top most frequent phenotypes and symptoms related to Focal Facial Dermal Dysplasia 1, Brauer Type; Ffdd1
- Low-set ears
- Depressed nasal bridge
- Upslanted palpebral fissure
- Broad nasal tip
- Horizontal nystagmus
- Sparse eyebrow
- Reduced subcutaneous adipose tissue
- Aplasia cutis congenita
- Absent eyelashes
- Depressed nasal tip
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Incidence and onset information
— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)— No data available about the known clinical features onset.
Alternative names
Focal Facial Dermal Dysplasia 1, Brauer Type; Ffdd1 Is also known as brauer syndrome, hereditary symmetrical aplastic nevi of temples, bitemporal aplasia cutis congenita.
Researches and researchers
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