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A study was conducted on 75 perinatal deaths with congenital anomalies through clinical, radiographic, cytogenetic, and autopsy evaluation, and the diagnoses of 72 patients (96%) were determined. In 11 patients with chromosomal anomalies, the cytogenetic study was sufficient to determine the diagnosis and the reproductive risk. In these cases, the value of the autopsy results resided above all in the description of the clinical variability. Radiographic evaluation was the best method to establish a diagnosis of skeletal dysplasias (14.7%). Furthermore, the X-rays showed small skeletal defects which are difficult to see on dissection. The clinical genetic evaluation with a detailed description of the phenotype and anthropometric exam, performed by a clinical geneticist, and the autopsy with gross and microscopic evaluation, facilitated the diagnoses of 50 cases (66.7%). We concluded that, in perinatal death with congenital anomalies, the teamwork of clinical geneticists and fetal pathologists increases the probability of determining the etiological diagnosis. This is essential to define the parents’ reproductive risk, thus contributing to primary prevention of congenital anomalies. [ABSTRACT FROM AUTHOR]