What is the role of CT scanning in the treatment of choroidal melanoma?

Updated: Dec 12, 2018
  • Author: Enrique Garcia-Valenzuela, MD, PhD; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Answer

Answer

Computed tomography (CT) scanning of the globe and orbit is more expensive than ultrasonography and is not as sensitive. It is useful for visualizing extraocular extension and may help differentiate between choroidal or retinal detachment and a solid tumor.

CT scan requires intravenous injection of contrast material. Choroidal melanoma shows enhancement with contrast, whereas exudation does not. CT scan also is sensitive in detecting calcium, a feature of some tumors that are different than uveal melanomas (characteristically choroidal osteoma).


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