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==Introduction==

==Description==

Haemangiomas are benign tumours of the vascular epithelium and soft tissues. They occur most commonly in dogs, occasionally in cats and horses and rarely in cattle and pigs. In dogs the tumours frequently occur on the distal extremities and the trunk. A widespread, disseminated form of the disease has been reported in dairy cattle affecting the skin and internal organs.

Haemangiomas are benign tumours of the vascular epithelium and soft tissues. They occur most commonly in dogs, occasionally in cats and horses and rarely in cattle and pigs. In dogs the tumours frequently occur on the distal extremities and the trunk. A widespread, disseminated form of the disease has been reported in dairy cattle affecting the skin and internal organs.

==Histological features==

==Histological features==

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 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.

==Treatment==

==Treatment==

Surgical treatment of cutaneous haemangioma generally has a good prognosis following surgical excision and metastasis is rare.

Surgical treatment of cutaneous haemangioma generally has a good prognosis following surgical excision and metastasis is rare.

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|literature search = [http://www.cabdirect.org/search.html?q=title%3A%28hemangioma%29+OR+title%3A%28Haemangioma%29&fq=sc%3A%22ve%22 Haemangioma publications]

 

 

[http://www.cabdirect.org/search.html?q=title%3A%28hemangioma%29+OR+title%3A%28Haemangioma%29&fq=sc%3A%22ve%22 Haemangioma publications]

==References==

==References==

*Raskin, R., Meyer, D. J. (Atlas of Canine and Feline Cytology''' ''Elsevier Health Sciences''  

*Raskin, R., Meyer, D. J. (Atlas of Canine and Feline Cytology''' ''Elsevier Health Sciences''  

[[Category:Neoplasia]][[Category:Dog]][[Category:Cat]][[Category:Horse]]

 

 

 

[[Category:Neoplasia]][[Category:Vascular Diseases - Dog]][[Category:Vascular Diseases - Cat]][[Category:Vascular Diseases - Horse]]

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[[Category:Expert Review]]

[[Category:WikiBlood]]

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[[Category:Cardiology Section]]