| 词条 | Placental villous immaturity |
| 释义 |
| name = Placental villous immaturity | image = Placental villous immaturity - alt -- intermed mag.jpg | caption = Micrograph of villous immaturity. H&E stain. | pronounce = | field = Gynecology, pathology | synonyms = Villous immaturity, villous dysmaturity | symptoms = | complications = | onset = | duration = | types = | causes = | risks = | diagnosis = | differential = | prevention = | treatment = | medication = | prognosis = | frequency = | deaths = }} Placental villous immaturity is chorionic villous development that is inappropriate for the gestational age. It is associated with diabetes mellitus[1] and fetal death near term, i.e. intrauterine demise close to the normal gestational period.[2] PathologyPlacental villous immaturity, as the name implies, is characterized by chorionic villi that are inappropriately developed for the gestational age. The development and maturation of chorionic villi is essential for normal fetal development. Immature chorionic villi are larger and have more central blood vessels; thus, the diffusion distance for gas and nutrient exchange is larger and, therefore, placental function is impaired. See also
References1. ^{{Cite journal | last1 = Arizawa | first1 = M. | last2 = Nakayama | first2 = M. | last3 = Kidoguchi | first3 = K. | title = [Correlation of placental villous immaturity and dysmaturity with clinical control of maternal diabetes]. | journal = Nihon Sanka Fujinka Gakkai Zasshi | volume = 43 | issue = 6 | pages = 595–602 |date=Jun 1991 | doi = | PMID = 1856519 }} 2. ^{{Cite journal | last1 = Stallmach | first1 = T. | last2 = Hebisch | first2 = G. | title = Placental pathology: its impact on explaining prenatal and perinatal death. | journal = Virchows Arch | volume = 445 | issue = 1 | pages = 9–16 |date=Jul 2004 | doi = 10.1007/s00428-004-1032-2 | PMID = 15138817 }} External links{{Medical resources| DiseasesDB = | ICD10 = | ICD9 = | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | MeshID = }} 1 : Health issues in pregnancy |
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