Sampling and Definitions of Placental Lesions: Amsterdam Placental Workshop Group Consensus Statement

Context.—The value of placental examination in investigations of adverse pregnancy outcomes may be compromised by sampling and definition differences between laboratories.Objective.—To establish an agreed-upon protocol for sampling the placenta, and for diagnostic criteria for placental lesions. Recommendations would cover reporting placentas in tertiary centers as well as in community hospitals and district general hospitals, and are also...