Cystic adenomyosis is a rare variant of adenomyosis and is believed to be the result of repeated focal hemorrhages resulting in cystic spaces filled with altered blood products.
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Radiographic features
MRI
MRI is the most sensitive and specific imaging modality for this diagnosis and will demonstrate cystic regions with a variable signal on both T1 and T2 weighted images, on account of blood products of various ages (see aging blood on MRI) 1.
For a general discussion, please refer to the article on adenomyosis.
Differential diagnosis
Considerations on MRI include:
- leiomyoma with hemorrhagic degeneration
See also
- adenomyotic cyst: there can be some overlap with cystic adenomyosis
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