Molecules such as proteins, nucleic acids, and carbohydrates have an affinity for water and are called hydrophilic (âwater-lovingâ). Lipids, however, are hydrophobic (âwater-fearingâ). Some lipids are amphipathicâpart of their structure is hydrophilic and another part, usually a larger section, is hydrophobic.
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.e found that a minimum axialdiameter of 7 mm for level II and 6 mm for the rest ofthe N0 neck represented the best compromise be-tween sensitivity and specificity. However, the size oflymph nodes was not an accurate predictor of metas-tasis in the N0 neck.
There are three main types of lymphocytes: B cells, T cells, and natural killer (NK) cells. Lymphocytes compose approximately 15 to 40% of the total white blood cells in the body. In a healthy adult a lymphocyte count of 1000 - 4800 cells per microliter of blood is considered the normal range.ymphocytopenia or lymphopenia are alternate terms for low lymphocyte counts. When the lymphocyte count is lowered, the body's ability to resist and fight off infections is severely compromised and its susceptibility to cancer is increased. In addition, low lymphocyte counts may also lead to damage to various organs.