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Hallermann-Streiff syndrome — Clinical Guidelines

Overview

Hallermann-Streiff syndrome (HSS) is a rare genetic disorder characterized by distinctive craniofacial features, ocular abnormalities including congenital cataracts and microphthalmia, and systemic manifestations such as skin atrophy and dental anomalies 3.

Diagnosis

Key Diagnostic Criteria:

- Craniofacial dysostosis (including micrognathia, beaked nose, and malar hypoplasia) 3 - Ocular anomalies (congenital cataracts, microphthalmia, and sometimes retinal dystrophy) 3 - Skin changes (atrophy, dryness, and hyperkeratosis) 3 - Dental abnormalities (small teeth, delayed eruption) 3 - Growth retardation and developmental delay 3

Recommended Tests:

- Ophthalmic examination for cataracts and retinal assessment 3 - Radiographic imaging (X-rays) to evaluate craniofacial structure 3 - Genetic testing for chromosomal abnormalities (e.g., 4q deficiency/14q duplication) 2

Management

First-Line Treatments:

- Early surgical intervention for bilateral cataracts to preserve vision 5 - Custom postcataract contact lenses for optimal ocular rehabilitation 5

Adjunctive Treatments:

- Regular ophthalmologic follow-ups to monitor ocular health 5 - Multidisciplinary care including dermatology, dentistry, and physical therapy 3 - Nutritional support and growth monitoring due to growth retardation 3

Special Populations

Pediatrics:

- Early surgical intervention for cataracts is crucial to prevent visual impairment 5 - Comprehensive developmental support and monitoring 3

Comorbidities:

- Hemihypertrophy has been reported in association with HSS, though uncommon 1 - Genetic abnormalities like 4q deficiency/14q duplication may require specific genetic counseling 2

Key Recommendations

Perform early ophthalmologic evaluation and surgical intervention for cataracts to prevent visual impairment (Evidence: Moderate 5)

Implement multidisciplinary care addressing craniofacial, ocular, dental, and systemic issues (Evidence: Expert opinion 3)

Consider genetic testing for chromosomal abnormalities in cases with atypical presentations (Evidence: Weak 2)

References

1 Dogan DG, Karabiber H, Erhan MD, Garipardic M, Davutoglu M, Guler E. Hallermann-Streiff syndrome with hemihypertrophy. Genetic counseling (Geneva, Switzerland) 2010. link 2 Fryns JP, Borghgraef M, Lemmens F, van den Berghe H. MCA/MR syndrome with features of Hallermann-Streiff syndrome and 4q deficiency/14q duplication. Clinical genetics 1993. link 3 De Wilde GA, Meire FM. The Hallermann-Streiff syndrome. Bulletin de la Societe belge d'ophtalmologie 1991. link 4 van Balen AT. François' syndrome. An intermediate between mandibulofacial and craniofacial dysostoses. Ophthalmic paediatrics and genetics 1985. link 5 Ronen S, Rozenmann Y, Isaacson M, Amit M, Bier N. The early management of baby with Hallermann-Steriff-Francois Syndrome. Journal of pediatric ophthalmology and strabismus 1979. link

Hallermann-Streiff syndrome