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.
[LYMPH NODE, NORMAL HISTOLOGY]. Lymph nodes are small lymphoid organs distributed throughout the body at specific locations and connected to other nearby nodes by lymphatic vessels carrying lymph fluid. A node consists of two main regions cortex (long left arrow) and medullar (arrowhead).The blood vessels and efferent lymphatic channel pass through hilum (bottom arrow). The primary function of lymph node is to respond to non-self antigens and generate antigen-specific soluble antibodies from mature plasma cells.LYMPH NODE, NORMAL HISTOLOGY]. Lymph nodes are small lymphoid organs distributed throughout the body at specific locations and connected to other nearby nodes by lymphatic vessels carrying lymph fluid. A node consists of two main regions cortex (long left arrow) and medullar (arrowhead).