Presentation
Painful perineal swelling. Admitted under surgical team.
Patient Data
Age: 50 years
Gender: Female
From the case:
Perineal abscess
![](https://prod-images-static.radiopaedia.org/images/17595617/63068998f135f725255239cb79fffb_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/17595577/2184ee6a607771df542f8a776ce000_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/17595419/09cb00f8a8047b2e68d22f66da3063_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/17595365/b914868071aaf027ec512c111186f7_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/17664299/30da1394ac22346a8023d89e227c40_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/17595438/8028421acc7c698b23436f3ed48f8b_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/17595297/c54d85553305a2f0e078654b0d76c9_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
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Info
![](https://prod-images-static.radiopaedia.org/images/17595617/63068998f135f725255239cb79fffb_big_gallery.jpeg)
Thick walled enhancing collection with small internal septations between the anorectum and intriotus.
Strong internal diffusion restriction.
Separate smaller subcutaneous cyst in the right glueteal region.
Case Discussion
An example of a perineal abscess - perhaps overkill to have required an MRI, but nevertheless it demonstrates the pathology nicely.
Likewise the appearances on DWI/ADC in abscess are well shown with avid internal diffusion restriction.
The abscess spontaeneously burst whilst awaiting incision and drainage.