Benign head histiocytosis
Benign cephalic histiocytosis (BCH) is a type of self-healing non-Langerhans cell histiocytosis. First reported by Gianotti and others in 1971. Non-langerhans cell histiocytosis (Non-langerhans cell histiocytosis) is characterized by hyperplastic tissue cells. Examination of cytoplasm does not contain Birbeck particles (Langerhans particles LG). Immunohistochemical examination S-100 Protein and CDIa (OKT6) were negative. The disease includes a series of self-healing diseases that occur in children and adults.
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