Changes

==Histological features==

==Histological features==

[[File:Haemangioma.jpg|right|200px]]

[[File:Haemangioma.jpg|right|200px|thumb|Micrograph of a Haemangioma]]

Haemangiomas are often well circumscribed and are composed of vascular spaces filled with red blood cells and lined by a layer of well-differentiated endothelial cells. Evidence for acute or chronic haemorrhage within the mass is often noted resulting in erythrophagocytosis or haemosiderin-laden macrophages, and organised thrombi are a frequent finding.

Haemangiomas are often well circumscribed and are composed of vascular spaces filled with red blood cells and lined by a layer of well-differentiated endothelial cells. Evidence for acute or chronic haemorrhage within the mass is often noted resulting in erythrophagocytosis or haemosiderin-laden macrophages, and organised thrombi are a frequent finding.