TY - JOUR T1 - Pediatric langerhans cell histiocytosis of the temporal bone: A rare case report and review of literature A1 - Renuka Verma A1 - Sunita Singh A1 - Rajnish Kalra A1 - Vinay Malik JF - Clinical Cancer Investigation Journal JO - Clin Cancer Investig J SN - 2278-0513 Y1 - 2020 VL - 9 IS - 2 DO - 10.4103/ccij.ccij_72_19 SP - 54 EP - 57 N2 - Langerhans cell histiocytosis (LCH) is a rare cancer involving clonal proliferation of Langerhans cells (LCs) resembling epidermal dendritic cells. It can involve any organ or system. Temporal bone LCH is often confused with ear inflammatory lesions and malignant tumors. Diagnosis is based on clinical, radiological, and pathological findings. The definitive diagnosis is made on biopsy and by immunohistochemical demonstration of CD 1a and or Langerin positivity in the clonally neoplastic cells. The course of LCH is variable from spontaneous regression to repeated recurrences and death. The main form of treatment is chemotherapy. We describe a case of multifocal multisystem LCH in a 4-year-old child who presented with recurrent chronic suppurative otitis media and an external auditory canal polyp. UR - https://ccij-online.org/article/pediatric-langerhans-cell-histiocytosis-of-the-temporal-bone:-a-rare-case-report-and-review-of-literature-835 ER -