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Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
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During meiosis, chromosomes occasionally separate improperly. This occurs due to failure of homologous chromosome separation during meiosis I or failed sister chromatid separation during meiosis II. In some species, notably plants, nondisjunction can result in an organism with an entire additional set of chromosomes, which is called polyploidy. In humans, nondisjunction can occur during male or female gametogenesis and the resulting gametes possess one too many or one too few chromosomes.

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Donor dominance cures CHILD nevus.

Arne König¹, Jan Skrzypek, Harald Löffler

¹Department of Dermatology, Philipp University, Deutschhausstrasse 9, Marburg, Germany.

Dermatology (Basel, Switzerland)

|April 15, 2010

Summary

Surgical intervention for Congenital Ichthyosis, Hemidysplasia, and Limb Defects (CHILD) syndrome offers promising results. Grafting skin from unaffected areas provides superior functional and cosmetic outcomes for this rare genetic disorder.

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Area of Science:

Dermatology and Genetics
Surgical Innovation

Background:

Congenital hemidysplasia with ichthyosiform nevus and limb defects (CHILD) syndrome is a rare, X-linked dominant, male-lethal disorder.
It presents as a unilateral inflammatory nevus with a distinct midline demarcation, posing significant treatment challenges.

Observation:

This study introduces a novel surgical approach for managing CHILD syndrome.
The technique involves dermabrasion and split-skin grafting from contralateral unaffected areas, or excision and full-thickness grafting for digital lesions.

Findings:

The surgical intervention yielded highly satisfactory functional and cosmetic results in all patients.
Follow-up periods ranged from 3 to 8 years, demonstrating sustained positive outcomes.

Implications:

The success is attributed to donor skin carrying an inactivated mutant X chromosome, leading to donor dominance.
This approach offers a superior alternative to conventional treatments like simple dermabrasion or extensive plastic surgery for CHILD syndrome.