Lymphangioma/Definition
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A benign tumor resulting from a congenital malformation of the lymphatic system; do not confuse with the malignant lymphangiosarcoma; Lymphangioendothelioma is a type of lymphangioma in which endothelial cells are the dominant component.
This definition is at least in part based on: Anonymous (2025), Lymphangioma (English). Medical Subject Headings. U.S. National Library of Medicine.