In the pleural region, there were multifocal star-shaped scarring lesions, with parenchymal retraction. Microscopically, all three cats had multifocal-to-coalescing fibrosis, type II pneumocyte ...

Pneumonia is an acute inflammation of the lung parenchyma, often filling alveoli with fluid. Causes include bacteria, aspiration, radiation, and poor hygiene. Risk factors are age, co-morbidities, ...