Vascular lesion (arteriovenous aneurysm or haemangioma) of the orbit in a case of chronic granulomatous disease.

A case of arteriovenous aneurysm or congenital arteriovenous haemangioma of the orbit is described in a 5-year-old boy with chronic granulomatous disease. Lipid pigments are demonstrated in endothelial cells as well as in histiocytes and fibrocytes. There appears to be a decreased ability to remove phagocytosed haemosiderin, in addition to the well-known inability of granulocytes, and probably to some extent of histiocytes, to kill phagocytosed bacteria.