{Reference Type}: Journal Article {Title}: Neuroimaging manifestations of paediatric histiocytoses. {Author}: Tan HEI;Lakshmanan R;Warne R;Walwyn T;Roebuck D; {Journal}: J Med Imaging Radiat Oncol {Volume}: 0 {Issue}: 0 {Year}: 2023 Nov 14 {Factor}: 1.667 {DOI}: 10.1111/1754-9485.13602 {Abstract}: Histiocytoses are rare multi-system disorders marked by abnormal histiocyte cell proliferation, affecting children with diverse clinical presentations. Classified into five groups in 2016, including Langerhans-related (L), cutaneous (C), malignant (M), Rosai-Dorfman disease (R) and haemophagocytic lymphohistiocytosis (H), newer entities such as ALK-positive histiocytosis have also emerged, heralding the era of molecular (sub)classification. Common entities include Langerhans cell histiocytosis (LCH), Erdheim-Chester disease (ECD), Rosai-Dorfman disease (RDD) and haemophagocytic lymphohistiocytosis (HLH). This pictorial essay aids radiologists in recognising and differentiating paediatric histiocytoses based on unique neuroimaging features.