Fetal vascular malperfusion 2022-02-01T17:07:42Z The term fetal vascular malperfusion (FVM) is used to describe placental pathology that is thought to result from an obstruction in fetal blood flow that could result from a number of conditions (eg, umbilical cord lesions, hypercoagulability, complications of fetal cardiac dysfunction, such as hypoxia, etc.). Findings consistent with FVM are thrombosis, segmental avascular villi, and villous stromal-vascular karyorrhexis. Other possible markers include vascular intramural fibrin deposition, stem vessel obliteration/fibromuscular sclerosis, and vascular ectasia. If data are available it is preferable to annotate the individual phenotypic features with specific HPO terms. Abnormal placenta morphology