alveolar walls
alveoli
alveolus
cell
congestion
eosin
hematoxylin
histology
ischemic
lung
magnification
medical
medicine
micro
micrograph
microphotograph
microscope
microscopic
microscopy
morphological
morphology
necrosis
passive
pathohistology
pathology
photo
photomicrograph
pulmonary
respiratory
stain
tissue
vascular