Sept 9 (Reuters) - ** Shares in Brazilian food retailer GPA PCAR3.SA jump amid reports about the potential sale of French group Casino's CASP.PA stake in the company
** A report from Brazil's Veja maganize said on Monday that Casino CEO Philippe Palazzi is traveling to Brazil next week to discuss the firm's stake in GPA with potential buyers
** Casino holds up to 22.5% of all GPA's ordinary shares
** GPA has been in the spotlight lately since it announced an extraordinary shareholders meeting on October 6 to vote the dismissal of its board
** GPA rises 10.3% in midday trading, making it the top gainer on Brazil's benchmark stock index Bovespa .BVSP, which is stable
** Year-to-date, GPA is up more than 70%
(Reporting by Fernando Cardoso)
((fernando.cardoso@thomsonreuters.com;))