Maricela Perez — ADJ11965696

Applicant Maricela Perez, a radiology technician, developed an intracranial meningioma allegedly caused by cumulative exposure to ionizing radiation across multiple employers. The dispute centered on which employer/insurer bears liability under Labor Code §§ 5412 and 5500.5, given that exposure spanned years and the date of injury for disability purposes differed from the last date of injurious exposure. Relying on the PQME (Dr. Baum) opinion that the last year of injurious exposure ended July 3, 2012 at CBCC, the WCJ found that period predated the § 5412 date of injury, making CBCC/its carrier liable. The Board granted reconsideration, adopted the WCJ's report, corrected a clerical error (the date had erroneously been stated as July 3, 2013), and affirmed the findings as amended, confirming the cumulative trauma period ended July 3, 2012.