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Multisystem disorder of Punjabi children exhibiting spontaneous dermal and submucosal granulation tissue formation:
J R Ainsworth1, G Shabbir, A F Spencer
1Tennent Institute, Glasgow, Scotland, UK.
Insights
A rare genetic disorder, LOGIC syndrome (laryngeal and ocular granulation tissue in children from the Indian subcontinent), affects infants with distinctive vocal, skin, and eye abnormalities. This devastating condition, linked to an autosomal recessive gene defect, currently lacks effective treatment.
Area of Science:
- Genetics
- Pediatrics
- Dermatology
Background:
- A novel multisystemic disorder is presented, affecting infants from Muslim families in the Punjab region of Pakistan and India.
- The disease manifests early in infancy with characteristic symptoms affecting multiple epithelial surfaces.
Observation:
- Clinical presentation includes an altered cry from vocal cord thickening, skin and nail abnormalities, and conjunctival scarring.
- Further manifestations involve other epithelial surfaces, including defective enamel formation in teeth.
- Histopathological examination reveals thickened, ulcerated granulation tissue in the dermis and submucosa.
Findings:
- Strong evidence suggests an autosomal recessive genetic defect underlies this condition.
- The precise pathogenic mechanism remains unknown.
- Current medical and surgical interventions have proven ineffective in modifying the disease's typically fatal progression.
Implications:
- The newly identified disease, termed LOGIC syndrome (laryngeal and ocular granulation tissue in children from the Indian subcontinent), requires further research.
- Understanding the genetic basis and pathophysiology is crucial for developing targeted therapies.
- This discovery highlights the importance of recognizing rare genetic disorders in specific ethnic populations.
Abstract:
We describe a multisystem disease that affects children of Muslim families originating in the Punjab region of Pakistan and India. An altered cry due to vocal cord thickening, skin ulceration, nail abnormalities, and conjunctival scarring appear in the first few months of life. Progression and spread of the disease in these sites may be accompanied by involvement of other epithelial surfaces. The teeth may exhibit defective enamel formation. Histology reveals the formation of simple granulation tissue arising in the dermis and submucosa which become massively thickened and ulcerated. There is good evidence for an autosomal recessive gene defect, but the actual mechanism of the disease is not known. Medical and surgical therapy have been ineffective in altering the course of this devastating and usually fatal condition. We suggest the term LOGIC (laryngeal and ocular granulation tissue in children from the Indian subcontinent) for this newly established disease.