MRI: Endometrioma

Endometrioma

MRI is highly sensitive and specific for the diagnosis of adenomyosis, deep endometriosis, endometriomas, and rectosigmoid endometriosis.

Focal adenomyosis as seen by thickening of the junctional zone, along with punctate high signal foci (dashed arrows). Incidental note is made of Nabothian cysts (arrows). Focal adenomyosis as seen by thickening of the junctional zone, along with punctate high signal foci (dashed arrows). Incidental note is made of Nabothian cysts (arrows).
Note left ovarian endometrioma (arrow), with a characteristic fluid/fluid level (dashed arrow).

Note left ovarian endometrioma (arrow), with a characteristic fluid/fluid level (dashed arrow).
Another example of endometriosis, this time with deep endometriosis involving the bowel. Note tethering of bowel (thin arrrow) with bowel wall thickening behind uterus (thick arrow). For comparison note normal thickness of the posterior margin of the bowel (arrowhead).. Another example of endometriosis, this time with deep endometriosis involving the bowel. Note tethering of bowel (thin arrrow) with bowel wall thickening behind uterus (thick arrow). For comparison note normal thickness of the posterior margin of the bowel (arrowhead
Bilateral ovarian endometriomas and right hematosalpinx with bright T1 signal, indicative of hemorrhage.

Bilateral ovarian endometriomas and right hematosalpinx with bright T1 signal, indicative of hemorrhage.
References
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