The pituitary gland
Possibly. When the pituitary gland doesn't work, anything can happen.
normally your hair, mostly every part of your body.
There is no known prevention of hypopituitarism, except for prevention of damage to the pituitary/hypothalamic area from injury.
the lungs
The eyes.
Liver.
the legs
Hepatitis affects the liver in the body.
There are many known individuals that have been diagnosed with the issue of "Hypopituitarism." This condition is very likely to run in family circles.
That would be the knee.
The brain.
yes...