What does “T2 dark plaque” mean on pelvic MRI?

On pelvic MRI, “T2 dark plaque” describes an area that looks dark on the T2 sequence (a common MRI setting that highlights fluid and soft-tissue differences). Radiologists often use this phrase when they see a plaque-like region of low T2 signal that suggests dense, fibrotic tissue—often scar-like change—rather than a simple fluid-filled cyst. In the endometriosis world, low T2 signal plaques can be seen with deep infiltrating disease or adhesions, because chronic inflammation can lead to fibrosis that reads “dark” on T2.

That said, “T2 dark plaque” is a descriptive imaging term, not a diagnosis by itself. Its meaning depends on the exact location (for example, behind the uterus, along the uterosacral ligaments, near the bowel or bladder) and whether there are other supportive MRI features, since some benign non-endometriosis processes can also look T2-dark. If your report mentions a T2 dark plaque and you have symptoms that fit organ involvement (bowel, bladder, deep sex pain, severe cyclical pelvic pain), our team can review your imaging and history together and help you understand whether the finding is likely clinically significant and how it may affect next steps in treatment planning.