ABP Pediatric Hematology-Oncology
HistiocyticEnglish
Exam overviewPractice session
A 3-year-old presents with lytic skull lesions, diabetes insipidus, and a scaly scalp rash. Biopsy shows CD1a+, S100+, langerin+ histiocytes with Birbeck granules by EM. Diagnosis?
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