National Cancer Institute National Cancer Institute
U.S. National Institutes of Health National Cancer Institute
Dictionary of Cancer Terms
Send to Printer
myasthenia gravis (MY-us-THEE-nee-uh GRA-vis)

 A disease in which antibodies made by a person’s immune system prevent certain nerve-muscle interactions. It causes weakness in the arms and legs, vision problems, and drooping eyelids or head. It may also cause paralysis and problems with swallowing, talking, climbing stairs, lifting things, and getting up from a sitting position. The muscle weakness gets worse during activity, and improves after periods of rest.

Previous Definitions:mustine, mutagen, mutate, mutation, myalgia
Next Definitions:mycophenolate mofetil, mycosis fungoides, mycosis fungoides plaque, Mycostatin, myelin