Police are appealing for public assistance to help locate missing Maiden Gully man Leighton.
The 48-year-old was last seen leaving a hospital on Lily Street in Bendigo about 11.15am on Monday, 14 October.
Leighton is Caucasian, about 180cm tall with short brown hair and a solid build.
Police and family have concerns for his welfare due to his medical conditions and his disappearance being extremely out of character.
It is believed he will be travelling in a white 2008 Toyota Hilux with the registration 1RM4YI.
Officers have been told Leighton may have been at a carpark on Hindley Street in Adelaide on 15 October.
Investigators have released an image of Leighton in the hope that someone can provide information on his current whereabouts.
Anyone with information is urged to contact Bendigo Police Station on 03 5448 1300.