Villous stromal-vascular karyorrhexis, previously described as hemorrhagic endovasculitis, is another manifestation of FVM.
Hemorrhagic endovasculitis and hemorrhagic villitis of the placenta.
Fetal disease is confirmed by extensive avascular villi, obliterative endarteritis, hemarragic
endovasculitis vascular thrombi.
Various types of vasculitis such as
endovasculitis, panvasculitis, thrombovasculitis, and perivasculitis were evident.
Periphlebitis and
endovasculitis of retinal vessels.
Peri- and
endovasculitis were visible in the white matter in pyramidal tracts and consisted mostly of macrophages and plasma cells.
Villous Stromal-Vascular Karyorrhexis.--Villous stromal-vascular karyorrhexis is the term preferred to hemorrhagic endovasculitis.
Hemorrhagic endovasculitis was not preferred because it connotes an inflammatory cause and is not clinically useful.
Distribution of Discrepant Diagnoses by Underdiagnosis and Misdiagnosis * Review Discrepant Placental Lesion Diagnosis Diagnosis Underdiagnosis Misdiagnosis Chronic villitis 23 5 (21.7) 5 (21.7) 0 Acute chorioamnionitis 110 28 (25.5) 25 (22.7) 3 (2.7) Infarct 71 23 (32.4) 18 (25.4) 5 (7.0) Decidual angiopathy 21 9 (42.9) 7 (33.3) 2 (9.5) Intervillous thrombus 21 12 (57.1) 12 (57.1) 0 Retroplacental hematoma 33 20 (60.6) 20 (60.6) 0 Maternal floor infarct 6 4 (66.7) 4 (66.7) 0 Massive perivillous fibrin deposit 19 13 (68.4) 13 (68.4) 0 Fetal thrombotic vasculopathy 16 12 (75.0) 12 (75.0) 0 Hemorrhagic
endovasculitis 13 11 (84.6) 11 (84.6) 0 Total 333 137 (41.1) 127 (92.7) 10 (7.3) * Data are number (percent) of diagnoses.
Placental hemorrhagic
endovasculitis can occur only in placentas of livebirths (Figure): True or False?
Hemorrhagic
endovasculitis (HEV) is a vasodisruptive alteration of fetal-placental blood vessels first described in 1980.