States of Matter: Facts. Matter is all around us. Matter is the air you are breathing. Matter is the computer you are reading from now. Matter is the stuff you touch and see. And it is more. Matter is defined as anything that has mass and takes up space.
The high specificity at 10 and 11 mmindicates that lymph nodes of this size are almostalways metastatic in this level.A study of level II lymph nodes shows that for thewhole population a minimum diameter of 8 mm givesa relatively high sensitivity and specificity of 81% and80%, respectively.
Dr. David: subcentimeter means smaller than 1cm. subcentimeter means smaller than 1cm. Dr. David: above the heart and between the lungs is an area called the mediastinum where there are normally many many lymph nodes that drain and filter the lymph fluid from the lungs.r. David: so it is completely normal to see lymph nodes in these regions on CT scan where the lymph nodes are less than 1cm in size. so it is completely normal to see lymph nodes in these regions on CT scan where the lymph nodes are less than 1cm in size.