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Focal nodular hypoplasia of liver — Clinical Guidelines

Overview

Focal dermal hypoplasia (Goltz syndrome) is an X-linked dominant congenital disorder characterized by defects in mesodermal and ectodermal structures, primarily affecting skin, but also potentially involving skeletal, dental, ocular, and soft tissue anomalies 1 2 3 4.

Diagnosis

Key Diagnostic Criteria: Characteristic skin findings, skeletal anomalies, ocular abnormalities, and soft tissue defects 1 2 3 4.

Recommended Tests: Genetic testing for mutations in the PORCN gene 1 4.

Neurological Evaluation: Essential, especially for central nervous system abnormalities such as myelomeningocele, Arnold-Chiari malformation, and hydrocephalus 1 2.

Management

Surgical Interventions: Tailored to specific anomalies (e.g., surgical correction for myelomeningocele) 2.

Supportive Care: Multidisciplinary approach including dermatology, orthopedics, ophthalmology, and neurology 1 2.

Genetic Counseling: Important for families due to the X-linked dominant inheritance pattern 3 4.

Special Populations

Pediatrics: Early diagnosis and multidisciplinary management crucial for optimal outcomes 1 2 3 4.

Comorbidities: Neurological complications require specialized care; consider associations with myelomeningocele and hydrocephalus 1 2.

Key Recommendations

Conduct thorough neurological evaluation in all patients with suspected focal dermal hypoplasia due to potential central nervous system abnormalities (Evidence: Moderate) 1 2.

Perform genetic testing for PORCN gene mutations to confirm diagnosis and guide genetic counseling (Evidence: Moderate) 1 4.

Implement a multidisciplinary treatment plan addressing cutaneous, skeletal, ocular, and neurological manifestations (Evidence: Expert opinion) 1 2 3 4.

References

1 Peters T, Perrier R, Haber RM. Focal dermal hypoplasia: report of a case with myelomeningocele, Arnold-Chiari malformation and hydrocephalus with a review of neurologic manifestations of Goltz syndrome. Pediatric dermatology 2014. link 2 Almeida L, Anyane-Yeboa K, Grossman M, Rosen T. Myelomeningocele, Arnold-Chiari anomaly and hydrocephalus in focal dermal hypoplasia. American journal of medical genetics 1988. link 3 Derks B, Gericke GS, Louw M. Focal dermal hypoplasia (Goltz syndrome): case reports. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 1978. link 4 Beganović N, Lommen EJ. A case of focal dermal hypoplasia (Goltz syndrome) with some new aspects. Acta paediatrica Scandinavica 1977. link

Focal nodular hypoplasia of liver