The employer objected to the WSIB's decisions granting the worker initial entitlement for pigmented villonodular synovitis (PVNS) and denying the employer Second Injury and Enhancement Fund (SIEF) cost relief.
The worker had suffered a twisting injury to her right ankle at work, and was later diagnosed with PVNS, a rare tumour, which required surgery.
The Appeals Resolution Officer found that, on a balance of probabilities, the workplace injury either caused or aggravated the PVNS, satisfying the significant contribution test.
The Officer also found no evidence that the PVNS was a pre-existing condition that enhanced or prolonged the claim, and therefore denied SIEF cost relief.
The employer's objections were denied.