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Juvenile xanthogranuloma is a form of histiocytosis, classified as non-Langerhans cell histiocytosis. [1] [2] It is a rare skin disorder that primarily affects children under one year of age but can also be found in older children and adults. [3] It was first described in 1905 by Adamson. [4]
Touton giant cells in a juvenile xanthogranuloma. H&E stain. Touton giant cells are a type of multinucleated giant cell observed in a myriad of pathological disorders and conditions. Specifically, Touton giant cells are found in lipid-rich lesions such as those of fat necrosis, xanthoma, xanthelasma and xanthogranulomas. Touton giant cells are ...
Juvenile xanthogranuloma Necrobiotic xanthogranuloma Giant cell reticulohistiocytoma Multicentric reticulohistiocytosis Xanthoma disseminatum Rosai–Dorfman disease Atypical fibroxanthoma Melanoma: CD79a: Primary cutaneous marginal zone lymphoma Primary cutaneous follicular lymphoma Diffuse large B-cell lymphoma leg type: CD117: Mast cell ...
Non-Langerhans cell histiocytosis, also known as rare histiocytoses, comprise all histiocyte, macrophage, and dendritic cell proliferative disorders that are not categorized as hemophagocytic lymphohistiocytosis (HLH) or Langerhans cell histiocytosis (LCH).
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[1]: 718 Progressive nodular histiocytosis was first reported in 1978 by Taunton et al. [2] It is a subclass of non-Langerhans cell histiocytosis and a subgroup of xanthogranuloma. [ 3 ] Signs and symptoms
Juvenile xanthogranuloma: Touton type giant cells and foamy cells VI. Tumoral lesions: Benign tumoral lesions Mastocytoma: Abundant mast cells Tzanck smear test is useful for rapid diagnosis of mastocytoma in children Sebaceous hyperplasia: Clusters of sebocytes Seborrheic keratosis: Hyperkeratosis and horny cysts 87.5% sensitive and 80.8% specific
Indeterminate cell histiocytosis (LCH) is an uncommon proliferative illness where the predominant cells have characteristics from both non-Langerhans cell histiocytosis (NLCH) and Langerhans cell histiocytosis (LCH) in terms of morphology and immunophenotypic characteristics. [1]