obsolete_Intimal Sarcoma true EFO:1000305 ONCOTREE:INTS http://purl.obolibrary.org/obo/MONDO_0006255 intimal sarcoma 3.88.0 UMLS:C1708550 Replaced by Mondo term MONDO_0006255, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0006255 NCIT:C53677 INTS A malignant neoplasm arising from the large blood vessels. It is characterized by the presence of tumor cells that grow within the lumen of the blood vessels. The intraluminal tumor growth may result in vascular obstruction and spread of tumor emboli to peripheral organs. The prognosis is usually poor.