TB also gets the nearby hilar lymph nodes, either carried over by immune cells through the lymph or by direct extension of the Ghon focus infection and causes caseation there as well.

TB也会进入到临近的肺门淋巴结，它不是被到淋巴结内，就是直接扩散到冈式病灶里面，在其中产生酪化作用。