The photograph on the right is perhaps an extremely exaggerated example of a process that might be related to the previous slide.
A key observation is that the distribution is multifocal. The red foci might be inflamed (multifocal pneumonia) or infarcted (embolism) or neoplastic. The distribution says the lesions are metastatic.
The photo on the right depicts a monstrous thrombus within a pulmonary artery.
