Rob Kardashian unveils huge weight loss in first public appearance for 17 months

Rob Kardashian appears to have undergone a body transformation after making his first public appearance in 17 months.

The brother of the famous Kardashian sisters showed off a slimmed down figure as he posed on Instagram beside his mother Kris Jenner for Halloween .

Rob, 32, went dressed as a troll while Kris, 63, looked striking in her Dia De Los Muertos outfit - including a full face of make-up.

But all eyes were on Rob who emerged that night after not being seen publicly in almost two years.