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Published on: April 26, 2019
[Conradi-Hünermann-Happle syndrome]
Stephanie F F W Bukkems1, Wim J Ijspeert, Maaike Vreenurg
1VieCuri Medisch Centrum voor Noord-Limburg, afd. Kinderrevalidatie, Venlo, the Netherlands. stephaniebukkems@gmail.com
Insights
Conradi-Hünermann-Happle syndrome, a rare genetic disorder affecting cholesterol metabolism, presents with severe skin abnormalities, skeletal issues, and cataracts. Early diagnosis and multidisciplinary care are crucial for managing this condition.
Area of Science:
- Genetics
- Biochemistry
- Pediatrics
Background:
- Conradi-Hünermann-Happle syndrome (CHHS) results from mutations in the emopanil binding protein-gene (EBP).
- The EBP gene encodes 3β-hydroxysteroid-δ8,7 isomerase, an enzyme critical for cholesterol metabolism.
Observation:
- A 19-month-old girl presented with CHHS, exhibiting complete erythrodermia at birth, linear ichthyosis, limb shortening, vertebral anomalies, scoliosis, and cataracts.
- The patient's mother also had CHHS, with a history of linear ichthyosis, leg length discrepancy, and congenital alopecia.
Findings:
- The case highlights the diverse and severe phenotypic manifestations of CHHS.
- Genetic mutations in EBP lead to significant developmental and dermatological issues.
Implications:
- A multidisciplinary approach is essential for the diagnosis and management of children with rare genetic syndromes like CHHS.
- Collaborative care ensures optimal follow-up for affected patients and their families.
Background:
Conradi-Hünermann-Happle syndrome is caused by a mutation in the emopanil binding protein-gene (EBP), which encodes the enzyme 3β-hydroxysteroid-dehydrogenase-δ8,7 isomerase. This gene is involved in cholesterol metabolism.
Case Description:
In this case report we describe a girl aged 19 months with Conradi-Hünermann-Happle syndrome. This syndrome was characterized in this patient by a complete erythrodermia directly after birth, followed by linear ichthyosis, shortened upper arms and thighs, vertebral anomalies resulting in progressive scoliosis and cataract. The patient's mother was found also to suffer from the Conradi-Hünermann-Happle syndrome. As a child she had linear ichthyosis, difference in leg length and congenital alopecia in a linear pattern.
Conclusion:
For diagnosis and treatment of children with such a rare syndrome a multidisciplinary approach is essential. Multidisciplinary collaboration guarantees an appropriate follow-up for the patient and the family.
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