Three cases of sclerosing hemangioma of the lung were studied. All developed in women aged 28, 32 and 59 years. They had been discovered on routine chest roentgenograms and then surgically removed. In two cases the tumours were solitary, in one case there were six tumours varying in size. The histology of this rare tumour and its various types as well as the results of immunohistochemical studies have been described, partly indicating its epithelial origin.