A 2 year old child presents with scattered lesions in the skull. Biopsy revealed Langerhans giant cells. The most commonly associated is marker with this candition will be
Correct Answer: CD 1a
Description: In Langerhans cell histiocytosis,the hallmark feature is the presence of Birbeck granules on electron microscopy and positivity for S-100 protein and CD 1a. Reference:Essential pediatrics-Ghai,8th edition,page no:620.
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Pediatrics
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