Acromegaly
Wow, just readin up on this. Pretty damn intersting, and kinda creepy. This is basically the same thing as Gigantism, which is what Andrea the Giant had I believe.
Acromegaly is a hormonal disorder that results when the pituitary gland produces excess growth hormone (GH). It most commonly affects middle-aged adults and can result in serious illness and premature death. Once recognized, acromegaly is treatable in most patients, but because of its slow and often insidious onset, it frequently is not diagnosed correctly.
The name acromegaly comes from the Greek words for "extremities" and "enlargement" and reflects one of its most common symptoms, the abnormal growth of the hands and feet. Soft tissue swelling of the hands and feet is often an early feature, with patients noticing a change in ring or shoe size. Gradually, bony changes alter the patient's facial features: the brow and lower jaw protrude, the nasal bone enlarges, and spacing of the teeth increases.
Check out this link to Robert Pershing Wadlow. He was the tallest man that ever lived and still holds the record. He suffered from this desease. He reached a height of 8' 11.1" and weighed 490 lbs. Hope these pics work here.
http://www.altonweb.com/history/wadlow/
Check this guy out...
Here are some other pics that I have found.
Damn ... trying to get pics to show up