<prompt> A 2-year-old child comes with ear discharge, seborrheic dermatitis, polyuria and hepatosplenomegaly. Which of the following is the most likely diagnosis?LeukemiaLymphomaLangerhans cell histiocytosisGerm cell tumor  <response>: c. Langerhans cell histiocytosisRef: Nelsons 20e p 2484-2489, Ghai 8e p 620-623Seborrheic dermatitis, polyuria, hepatosplenomegaly and ear discharge suggests diagnosis of LCH. 