Donelle Trotman , a father of 336lbs from New York 's Staten Island , saw his weight double to reach two in a year . Regular exercise failed to help him shift the pounds . After a series of tests which left doctors baffled , a medical intern noticed tell-tale stretch marks on his arms , a sign of Cushing 's disease . The rare form of brain tumor triggers the release of excess weight-building steroids . Mr Trotman had surgery to remove the mass and doctors say he will make a full recovery within a year .
Donelle Trotman , a father of two from New York 's Staten Island , saw his weight double to reach 336lbs in a year . Regular exercise failed to help him shift the pounds . After a series of tests which left doctors baffled , a medical intern noticed tell-tale stretch marks on his arms , a sign of Cushing 's disease . The rare form of brain tumor triggers the release of excess weight-building steroids . Mr Trotman had surgery to remove the mass and doctors say he will make a full recovery within a year .