A mother awaits DNA test results on a man who may be her son who disappeared over 30 years ago.

Kerry Needham, mother of Ben Needham who disappeared from Kos, Greece on July 24, 1991 at age 21 months, is awaiting DNA test results from Interpol on a man in the US who was allegedly illegally adopted in 1993 and bears an uncanny resemblance to Ben's age progression images.