Discussions of pulmonary thromboemboli and pulmonary infarcts most often occur in the autopsy suite rather than the surgical pathology laboratory. In fact, some renowned textbooks on pulmonary ...

A calcified granuloma in the lung is a cluster of immune cells with calcium deposits. They can be asymptomatic or cause symptoms such as wheezing and chest pain. A granuloma is a small cluster of ...

When lung tissue becomes inflamed from an infection or other cause, cells called histiocytes cluster to form nodules called granulomas. They may not cause any symptoms but may have an underlying cause ...

Mycobacterium tuberculosis probably evolved from a founder strain similar to the TB-like strains found today in central Africa, and invaded mankind prior to the spread of humans out of Africa.

When the cells clump together, they protect the body from potential threats in two ways. The first is keeping an infection in one place to stop it from spreading to other parts of the body. The second ...