Non-X histiocytosis

Non-X histiocytoses are a clinically well-defined group of cutaneous syndromes characterized by infiltrates of monocytes/macrophages, as opposed to X-type histiocytoses in which the infiltrates contain Langerhans cells. Conditions included in this group are:

• Juvenile xanthogranuloma
• Benign cephalic histiocytosis
• Generalized eruptive histiocytoma
• Xanthoma disseminatum
• Progressive nodular histiocytosis
• Papular xanthoma
• Hereditary progressive mucinous histiocytosis
• Reticulohistiocytosis
• Indeterminate cell histiocytosis
• Sea-blue histiocytosis
• Erdheim–Chester disease

See also

• X-type histiocytosis
• Histiocytosis