What is the role of CT scanning in the workup of endometrioma/endometriosis?

Updated: Dec 14, 2018
  • Author: Shawn Daly, MD; Chief Editor: Eugene C Lin, MD  more...
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CT scanning typically is not performed in the radiologic evaluation of endometriosis because the appearance of endometriosis and endometriomas on CT scans is nonspecific. If CT scanning is performed, endometriomas appear as cystic masses. A slightly high attenuation crescent lying dependently within the cyst has been described as a more specific feature. [16]

Complications of endometriosis, such as bowel obstruction, are evident on CT scans. Ureteral obstruction may cause hydronephrosis.

The appearance of endometriomas and endometriosis on CT scans is easily mimicked by pelvic inflammatory disease, as well as by benign or malignant ovarian tumors. CT scanning should not be relied on for the diagnosis.

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