May 7, 1952. Appeal from Workmen's Compensation Board. Present — Foster, P.J., Heffernan, Brewster, Bergan and Coon, JJ. The question on this appeal is whether there is substantial medical evidence to associate an injury with a carcinoma in the left leg which in turn required the amputation of the leg. There is strong evidence to support a finding that a truck pushed against claimant's left leg and ankle; that a swelling developed at the site of injury; that a tumor developed on that site which was