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. 2014 Sep;4(9):a017855. doi: 10.1101/cshperspect.a017855

Figure 7.

Figure 7.

Airway obstruction with “check valve” effect (Gie et al. 2003; Marais et al. 2004b). The enlarged lymph nodes frequently cause airway complications, especially in young children with small and pliable airways. Hyperinflation (ball valve effect) of left lung. See remnant of Ghon focus and large left-sided perihilar nodes.