Source:http://linkedlifedata.com/resource/umls/id/C0205697
NCI: A type of cancer that begins in the skin or in tissues that line or cover internal organs and that contains long spindle-shaped cells.,NCI: A malignant epithelial neoplasm characterized by the presence of spindle cells.,NCI: A malignant epithelial neoplasm characterized by the presence of spindle cells and anaplastic morphologic features. Giant cells and a sarcomatous component may also be present.