PULMONARY alveolar microlithiasis is a rare and extraordinary disease in which microscopic stones are found within the pulmonary alveoli. The lungs, which are heavy and stony hard, cut with the ...

model contains many of the critical features of alveolar macrophages found in the lungs, including onion-shaped phagolysosomes (left) and the cell nucleus (right). A human cell culture model of ...