Polychlorinated Napthalene Poisoning
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Hyperplastic proliferative pathology
- Polychlorinated biphenyl's (PCB's).
- Used in all sorts of things.
- Do not break down in environment and very toxic.
- Poisoning was classically seen as proliferative stomatitis when PCB used to lubricate feed pellet making machine.
- Vitamin A antagonist produces hyperkeratosis of mouth (like Vitamin A deficiency).