Laib v. State Insurance Fund

We affirm. “While an accidental injury must arise from unusual environmental conditions or events assignable to something extraordinary, it need not result suddenly or from *1280the immediate application of some external force but may accrue gradually over a reasonably definite period of time” (Matter of Duncan v John Wiley & Sons, Inc., 54 AD3d 1124, 1125 [2008] [internal quotation marks and citations omitted]; see Matter of Johannesen v New York City Dept. of Hous. Presero. & Dev., 84 NY2d 129, 136 [1994]). Here, we reject the employer’s contention that the record lacks proof of an unusual or…