Researchers at Kobe University have created an artificial intelligence system that can identify a rare endocrine disease simply by examining photos of the back of the hand and a clenched fist. The approach avoids facial images, helping protect patient privacy while still achieving high diagnostic accuracy. Scientists say the technology could eventually help doctors refer patients to specialists more quickly and improve access to care in underserved areas.

The disease the AI targets is acromegaly, an uncommon condition that usually appears in middle age. It is caused by excessive production of growth hormone, which leads to enlarged hands and feet, changes in facial appearance, and abnormal growth of bones and internal organs. Because the disorder develops gradually over many years, it can be difficult to recognize early.

If untreated, acromegaly can lead to serious health problems and shorten life expectancy by about 10 years.…