Hemangioma, a common tumour of infancy, is a benign vascular neoplasm of unknown aetiology. Most are small lesions, but about 10% can expand rapidly and can be life threatening. The nature of the primary defect responsible for the abnormal endothelial proliferation is unknown. In the 15 March Journal of Clinical Investigation, Eileen Boye and colleagues from Harvard Medical School show that hemangiomas are caused by clonal expansion of vascular endothelial cells.Boye et al isolated abnormal endo
Hemangioma, a common tumour of infancy, is a benign vascular neoplasm of unknown aetiology. Most are small lesions, but about 10% can expand rapidly and can be life threatening. The nature of the primary defect responsible for the abnormal endothelial proliferation is unknown. In the 15 March
Boye
These results indicate for the first time that ...
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