From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Chorangioma - intermed mag.jpg
Micrograph of a chorangioma (right of image). H&E stain.
Classification and external resources
Specialty obstetrics
MeSH D006391

A chorangioma is a non-neoplastic, hamartoma-like growth in the placenta consisting of blood vessels.[1]


Large chorangiomas are diagnosed by ultrasound or MRI,[1] and confirmed by histologic examination of the placenta.

Histologically, chorangioma consist of abundant vascular channels and may be cellular.


Most chorangiomas are not clinically significant, i.e. they do not have an adverse effect on placental function.

The significance of a chorangioma is determined by its size and whether it is found together with other chorangiomas. Chorangiomas are significant if multiple or "large", i.e. greater than 4 cm[1] or 5 cm.[2]


Small chorangiomas are not treated. Large chorangioma can be treated several ways, including chemical ablation and laser coagulation.[1]

See also[edit]

Additional images[edit]


  1. ^ a b c d Amer HZ, Heller DS (2010). "Chorangioma and related vascular lesions of the placenta--a review". Fetal Pediatr Pathol. 29 (4): 199–206. doi:10.3109/15513815.2010.487009. PMID 20594143. 
  2. ^ Lež C, Fures R, Hrgovic Z, Belina S, Fajdic J, Münstedt K (2010). "Chorangioma placentae". Rare Tumors. 2 (4): e67. doi:10.4081/rt.2010.e67. PMC 3019602Freely accessible. PMID 21234259. 

External links[edit]