RESULTS: Among 34 cases of KHE, 17 cases are male, 17 cases are female and the median age is 15.5 months (aged 20 days to 54 years). The cases of which KHE occours are 8 trunks, 6 bones, 6 skins of limbs, 5 head-and-necks, 3 after- peritoneals, 2 mediastinums, 1 spleens, 2 skins of limbs and bone, 1 multifocal lesions. The main clinical manifestations are neoplasms (19 cases), other clinical features include pains (9 cases), erythemas (3 cases) etc. 30case refer to platelet-counts, among which 17 reduced and 13 normal. The pathology of the tumor are composed of spindle cells mainly and present as nodular, and typical pathology change-- glomerular structure occoured in 19 cases. The results of immunohistochemistry is CD34-positives 29 cases, CD31-positives 24cases, Vimentin-positives 14 cases. The results about treaments are 14 operations, 6 chemotherapies,6 operation-and-postoperative-chemotherapies.