News Calif. man thought his large belly was caused by weight gain. It was a 77-pound tumor November 29, 2018November 29, 2018Brett Molina, USA TODAYComments Off on Calif. man thought his large belly was caused by weight gain. It was a 77-pound tumor A California man thought his larger belly might have been related to his weight. A visit to doctors uncovered it was because of a 77-pound tumor.