Smooth muscle tumours show a smooth muscle differentiation. There are two main types of smooth muscle tumour: the benign leiomyoma and the malignant leiomyosarcoma. ... Found on http://en.wikipedia.org/wiki/Smooth_muscle_tumour
A tumour composed of smooth muscle tissue, as opposed to leiomyoma, a tumour derived from smooth muscle. ... (12 Dec 1998) ... Found on http://www.encyclo.co.uk/local/20973