Orbital Combined Lymphatic-Venous Malformation

**Semantic type:** Disease or Syndrome

**Definition:** An orbital congenital vascular malformation that consists of malformed veins and lymphatic channels separated by fibrous tissue septa. The fibrous tissue may contain lymphoid follicles and hemosiderin-laden macrophages.

**Synonyms:** - Combined Lymphatic-Venous Malformation of the Orbit