Responsive changes, developing as a response
to various pathological processes in an organism (inflammatory process,
vaccination, etc.) are accompanied by affection of a lymph node, change of its
capsule, damage of cortical and paracortical areas, which leads to increasing of
chromogeneity; in a lymph node there can be single achromogenic “cystic”
structures; abscess formation may be revealed later. It must be taken into
account that changes in lymph nodes located near a tumor, may be manifested by
non-specific reaction of inflammatory character.
Hyperplastic lymph nodes are most frequently
of oval shape, with hyperchromogenic structure, thin slightly chromogenic frame,
occupying about a third of a node. Hyperchromogenic nodes, with sometimes
hypochromogenic center, occupying less than 2/3 of a node, may be both
hyperplastic and metastatic-changed.
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