Langerhans cell histiocytosis (LCH) is a clonal proliferative disorder of antigen‐presenting Langerhans’ cells, predominantly occurring in children with rare cases in adults. A definitive cytological diagnosis can be established on the basis of characteristic cytomorphology and immunocytochemical features.

中文翻译：

---

成年男性多发颅骨病变：罕见表现的细胞学诊断

朗格汉斯细胞组织细胞增生症 (LCH) 是一种抗原呈递朗格汉斯细胞的克隆性增殖性疾病，主要发生在儿童中，成人罕见。可根据特征性细胞形态学和免疫细胞化学特征确定明确的细胞学诊断。