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INSIDIOUS PROGRESSIVE DISEASE
AND EXTENDED PD JURISDICTION
In Arbogast v. CHP (2023) a CHP Officer incurred ovarian cancer which was deemed industrial due to exposure to chemicals at work (i.e. vehicle fires, diesel exhaust fumes, etc.). The two QMEs opined while the cancer was surgically removed, there was a 50% chance of returning in 5-7 years. The main trial issue was whether the WCAB could reserve jurisdiction on PD more than five years from date of injury.
The Board held that jurisdiction can be reserved on PD beyond the five year limitation under Labor Code sections 5410 and 5804 when the injury stems from an "insidious progressive disease" which has been defined as (1) caused by remote or undramatic work exposure that could be undetected for prolonged periods; (2) worsens over time before becoming apparent; and (3) has a long latency period (General Foundry v. WCAB (Jackson) (1986) 51 CCC375).
A well known example of an insidious progressive disease in which PD jurisdiction is reserved involves asbestos. The doctrine has also been applied to cases involving various cancers (bladder, prostrate, thyroid), and hepatitis C.
[COMMENT: In short, jurisdiction to address PD can be extended in a non-traumatic injury where medical opinions confirm the existence of an industrially caused disease that is likely to progressively worsen well beyond five years from date of injury.]
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