Corneal staining isn’t a disease, it’s a sign of abrasions to your cornea, the outer surface tissue of your eyes. Abrasions can have different causes, including wearing contact lenses or if something ...

Your doctor may use an acid-fast bacteria (AFB) stain test to see if you have a lung disease like tuberculosis (TB). In addition to showing tuberculosis, an AFB stain can also show if you have another ...

Terminal deoxynucleotidyl transferase dUTP nick end labeling, also known as TUNEL staining or the TUNEL assay, is a robust technique for the detection of apoptosis. This kind of cell death is known to ...

Immunohistochemistry uses antibodies to test tissue samples for specific types of antigens. It can often provide very specific results regarding cancer types or other diseases, helping doctors decide ...