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"ADENOMYOSIS OF THE UTERUS [696] "

“ Benign, ectopic endometrial glands in the myometrium that cause myometrial hypertrophy. The symptoms are dysmenorrhoea/menorrhagia. MRI  ...

Benign, ectopic endometrial glands in the myometrium that cause myometrial hypertrophy. The symptoms are dysmenorrhoea/menorrhagia.
MRI 
 Ill-defined thickening of the junctional zone (>12 mm), fibrotic with low signal on T1 and T2.
•  Small foci of high signal on susceptibility sequences indicate blood products.
•  The uterus is diffusely enlarged, but no discrete mass and outer contours are preserved (unlike fibroids).
•  May also appear as focal disease.
Sagittal T2-weighted image of the pelvis showing thickening of the junctional zone and multiple small foci of T2 hyperintensity in the myometrium (white arrow), in keeping with adenomyosis.