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Griscelli syndrome
Amit Kumar Malhotra1, G Bhaskar, Mousmee Nanda
1Department of Dermatology and Venereology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi.
Insights
Griscelli syndrome, a rare genetic disorder, presents with silvery gray hair and immune deficiency. Early diagnosis is crucial as the condition can lead to severe infections and pancytopenia.
Area of Science:
- Genetics
- Immunology
- Pediatrics
Background:
- Griscelli syndrome is a rare autosomal recessive disorder characterized by pigmentary dilution and primary immunodeficiency.
- It is associated with mutations in genes involved in lysosome-related organelle biogenesis.
Observation:
- A 4-month-old infant presented with silvery gray hair, hypopigmentation, recurrent infections, hepatosplenomegaly, and pancytopenia.
- Microscopic examination revealed characteristic pigment clumping in hair shafts and enlarged melanocytes in skin biopsies.
Findings:
- The patient exhibited clinical features consistent with Griscelli syndrome, including characteristic hair shaft abnormalities and skin findings.
- Despite diagnosis, the child experienced an accelerated disease phase, succumbing to infection.
Implications:
- This case highlights the importance of recognizing the clinical manifestations of Griscelli syndrome for timely diagnosis.
- Understanding the pathophysiology is crucial for developing potential therapeutic strategies and improving patient outcomes.
Abstract:
A 4-month-old child had silvery gray hair, light-colored skin, recurrent chest infections, hepatosplenomegaly, and episodes of pancytopenia and hemophagocytosis in the liver, spleen, and bone marrow. Light microscopy of hair showed characteristic large aggregates of pigment granules distributed irregularly along the hair shaft. Peripheral blood smear examination did not show giant granules in granulocytes. Enlarged hyperpigmented basal melanocytes with sparsely pigmented adjacent keratinocytes were seen on the skin biopsy specimen. On the basis of these clinical and laboratory findings, Griscelli syndrome was diagnosed. The child succumbed to infection during an accelerated phase of the disease.
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