Diffuse adenomyosis may account for ~2/3rd of uterine adenomyosis.
Diffuse adenomyosis can be even or uneven in involvement and, therefore, it is subclassified as either symmetrical or asymmetrical 3.
Non-specific but may be seen as heterogeneity in myometrial echotexture.
Myometrial bulkiness however may be asymmetric and typically can affect the fundal region and posterior wall 4.
On T2-weighted MR images, diffuse adenomyosis usually manifested as diffuse thickening of the endometrial-myometrial junctional zone (many use the thickness cut off of ~12 mm) with homogeneous low signal intensity 1.
- 1. Woodfield CA, Siegelman ES, Coleman BG et-al. CT features of adenomyosis. Eur J Radiol. 2009;72 (3): 464-9. doi:10.1016/j.ejrad.2008.08.002 - Pubmed citation
- 2. Reinhold C, Mccarthy S, Bret PM et-al. Diffuse adenomyosis: comparison of endovaginal US and MR imaging with histopathologic correlation. Radiology. 1996;199 (1): 151-8. Radiology (abstract) - Pubmed citation
- 3. Imaoka I, Ascher SM, Sugimura K et-al. MR imaging of diffuse adenomyosis changes after GnRH analog therapy. J Magn Reson Imaging. 2002;15 (3): 285-90. J Magn Reson Imaging (link) - Pubmed citation
- 4. Hamm B, Forstner R, Beinder E. MRI and CT of the female pelvis. Springer Verlag. (2007) ISBN:3540222898. Read it at Google Books - Find it at Amazon