the ultrastructural descriptions of hemorrhagic areas , vascular spaces , neoplastic endothelial cells , their cytoplasms and organelles are illustrated in detail.in conclusion , whereas hydrazine enhanced the development of lung tumors , when the dimethyl group was attached to it at symmetrical positions , it evoked vascular tumors .
C1513956
neoplastic endothelial cells
C0282607
vascular tumors