Lung changes in Traumatic Brain Injury. A: neutrophil infiltration (yellow arrow) and proliferation in the alveolar and interstitial space, thickening of the alveolar septum, (green arrow) as well as edema and alveolar hemorrhage (redhead arrow). (H&E, x600). B: destruction of type II alveolar cells, which leads to disruption of normal fluid transport. (yellow arrow). D: Toxoplasma gondii cyst-containing discrete granule-type bradyzoites (yellow arrows) and free tachyzoites (red arrowheads) (H&E, x600). C: Macroscopic view of Lung tissue.