Claim of McDonald v. Danforth
Claimant, a heavy construction worker, sustained a hand burn in August 1996, which led to the development of psoriasis affecting multiple body parts. His treating dermatologist determined the psoriasis was causally related to his employment due to aggravation from heavy tools and work. The employer contested this, but their expert's report, while noting genetic predisposition, conceded the possibility of work-related aggravation and onset after the burn. The Workers’ Compensation Board affirmed the finding of causal relationship and denied the employer's request for an adjournment for expert testimony. The appellate court affirmed the Board's decision, citing the presumption in favor of claimant's medical reports and finding no prejudice to the employer. The court also clarified that aggravation of a non-occupational condition can lead to benefits if a distinctive employment feature causes a new disability.