Polychlorinated Biphenls or PCB's, a toxin, are found in these transformers and because of their health risk, must be replaced through attrition or when they are leaking.
Liver dysfunction is a recognized symptom of PCB exposure.
My husband's health problems started in 1988 when Frankie began to have infrequent black-out spells. By 1993 he was waking up with occasional nausea and dizziness, sometimes vomiting before he went to work. He had some swelling in his hands too. We went to our family doctor and the tests showed elevations in his liver enzymes which meant that there was possible liver damage. The doctor never told us that at the time and just put Frankie on an anti-depressant, but his symptoms continued.