International Rare Histiocytic Disorders Registry (IRHDR)

Conditions

• Rare Histiocytic Disorders (RHDs)
• Erdheim-Chester Disease (ECD)
• Rosai-Dorfman Disease (RDD)
• Xanthogranuloma Family (XG)
• Indeterminate Dendritic Cell Histiocytosis
• Malignant Histiocytic Neoplasm (MHN)
• ALK-positive Histiocytosis
• Mixed Histiocytosis (MXH)
• Multicentric Reticulohistiocytoma (MRH)
• Necrobiotic Xanthogranuloma (NX)

Interventions

• OTHER: Registry study

Sponsor

The Hospital for Sick Children