Paul Taggart | Bloomberg | Getty Images
GameStop, the world's largest retailer of videogame products, said Chief Executive Paul Raines underwent an unexpected surgery last week for a small cancerous brain tumor.
Raines, who will be undergoing chemotherapy, will restrict his travel during the expected six week of treatment, the company said in a regulatory filing on Tuesday.
GameStop also said the six week treatment period will not interfere with Raines' "continued leadership'' of the company.
Read More PlayStation 4 sales hit 10M in blow to Microsoft's Xbox
— By Reuters