A year later she reported some pain in her chest and a scan showed she had an enlarged thymus gland — which sits between the chest and the lungs — but no further action was taken. In February ...

One of the most baffling glands in the body is the thymus. It lies just below the neck and behind the top of the breastbone, and in all the centuries that man has been studying physiology ...

Now it appears that the thymus founds a line of cells that is responsible for the production of antibody Its function has been poorly understood, largely because the gland atrophies after childhood.