NIH Rare Diseases :
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The following summary is from Orphanet , a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 79133 Definition Focal facial dermal dysplasia type I (FFDD1), also known as Brauer syndrome , is a focal facial dysplasia (FFDD; see this term) characterized by congenital bitemporal cutis aplasia. Epidemiology FFDD1 has been reported in over 80 cases including three large multi-generational families (German, English, Australian) and several sporadic cases. Clinical description The bitemporal, rarely unilateral, hypoplastic scar-like lesions in FFDD, resembling forceps marks, are usually the only manifestations of FFDD1. Other very rarely described and usually mild facial dysmorphic features may comprise a low frontal hairline, sparse hair, sparse lateral eyebrows, distichiasis (upper lashes), flattened nasal tip, bulbous nasal tip, prominent upper lip, skin dimples lateral to lips, horizontal chin furrow, vertical chin cleft, and linear grooves on the forehead. Most patients usually have normal intelligence. Etiology Etiology is unknown. Diagnostic methods Clinical examination reveals bitemporal scars. Differential diagnosis Differential diagnosis includes focal facial dermal dysplasia type 2 and 3 (see these terms). Antenatal diagnosis Prenatal diagnosis is not available Genetic counseling FFDD1 is transmitted in an autosomal dominant manner with full penetrance. Management and treatment No specific treatment exists. There is limited experience with plastic surgery for the facial scar-like lesions. Prognosis Affected individuals have a normal intelligence and life span. Visit the Orphanet disease page for more resources.
MalaCards based summary :
Focal Facial Dermal Dysplasia, also known as
hereditary symmetrical aplastic nevi of temples, is related to
barber-say syndrome and
focal facial dermal dysplasia 3, setleis type. An important gene associated with Focal Facial Dermal Dysplasia is
TWIST2 (Twist Family BHLH Transcription Factor 2). Affiliated tissues include
skin and
bone, and related phenotypes are
craniofacial and
limbs/digits/tail
KEGG :
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The focal facial dermal dysplasias (FFDDs) are a group of inherited disorders of facial development, characterized by skin lesions resembling aplasia cutis congenita. Four subtypes are classified by the bitemporal (FFDD1-3) or preauricular (FFDD4) lesion location. FFDD1-3 are differentiated by additional facial abnormalities and inheritance patterns.
Wikipedia :
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Focal facial dermal dysplasia is a rare genetically heterogeneous group of disorders that are...
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Rare skin diseases 
