CHARLOTTESVILLE, Va. >> Thanks to treatment by researchers at the University of Virginia Medical Center, the world’s tallest man may have reached his peak.

Measuring in at 8-feet-3 inches, Sultan Kosen of Turkey is listed in the 2011 Guinness World Records at the tallest living man.

Kosen visited U.Va. in May 2010 for treatment for a disorder called acromegaly, which is usually caused by a tumor in the pituitary gland.

The Richmond Times-Dispatch (http://bit.ly/AtJeHK ) reports that Kosen was placed on a new medication that could potentially help control the production of growth hormone and stop his continued growth. According to U.Va. officials, doctors in Turkey say Kosen has stopped growing.