Chorangioma

Chorangioma
Classification and external resources
Micrograph of a chorangioma (right of image). H&E stain.
MeSH	D006391

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

Diagnosis

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.

Significance

Most chorangiomas are not clinically significant, i.e. they do not have an adverse affect 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]

Treatment

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

See also

• Hemangioma
• Chorangiosis

Additional images

• 

  Micrograph of a chorangioma (right of image) and normal placenta (left of image). H&E stain.

References

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 3019602. PMID 21234259. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3019602. 

External links

• Chorangioma (pathweb.uchc.edu)
• Chorangioma (humpath.com)