Chorangiosis
| Chorangiosis | |
|---|---|
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Micrograph of a chorangiosis. H&E stain. | |
| Classification and external resources |
Chorangiosis is a placental pathology characterized by an abundance of blood vessels within the chorionic villi.
Associations
It is associated with gestational diabetes,[1] smoking and high altitude.
Diagnosis
It is diagnosed by a microscopic examination of the placenta.
Commonly used criteria from Altshuler[2][3] are: "a minimum of 10 villi, each with 10 or more vascular channels, in 10 or more areas of 3 or more random, non-infarcted placental areas when using a ×10 ocular." The Altshuler criteria are not theoretically rigorous, as they do not define the area. Normal villi have up to five vascular channels.[3]
See also
Additional images
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Intermed. mag.
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Very high mag.
References
- ↑ Daskalakis, G.; Marinopoulos, S.; Krielesi, V.; Papapanagiotou, A.; Papantoniou, N.; Mesogitis, S.; Antsaklis, A. (2008). "Placental pathology in women with gestational diabetes.". Acta Obstet Gynecol Scand. 87 (4): 403–7. doi:10.1080/00016340801908783. PMID 18382864.
- ↑ Altshuler, G. (Jan 1984). "Chorangiosis. An important placental sign of neonatal morbidity and mortality.". Arch Pathol Lab Med. 108 (1): 71–4. PMID 6546343.
- 1 2 De La Ossa, MM.; Cabello-Inchausti, B.; Robinson, MJ. (Sep 2001). "Placental chorangiosis.". Arch Pathol Lab Med. 125 (9): 1258. doi:10.1043/0003-9985(2001)125<1258:PC>2.0.CO;2. PMID 11520290.
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