Presentation
Pain and swelling of the left foot.
Patient Data
![](https://prod-images-static.radiopaedia.org/images/59716828/b07d38a21522849f63f8f57ff7e1252e8f5bcb8864db88910f6662422304f9ce_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/59716829/86b29b5cb91b03b4233d245360f092e4e16ef98ee2935e62426e50fee88431b8_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/59716830/089f7dc1aad9bcd7d67f771c2891b7747f3791c325a40a98a4dbd502a79ce966_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/59716828/b07d38a21522849f63f8f57ff7e1252e8f5bcb8864db88910f6662422304f9ce_big_gallery.jpeg)
There is a typical juxta-articular "rat bite" erosion of the left 5th metatarsal head with associated soft tissue tophus. There are juxta-articular erosions involving all the metatarsal bases.
![](https://prod-images-static.radiopaedia.org/images/59764413/8fa9835d2daec27414e665ae38e8e9b6eaea399cd82225c4bb43a5f658812cf6_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/59764415/6a9bcff5a47177dc3e0ae902e2ff8c73b32f4b3dafea9fbc21c711bf18f65f93_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/59764414/24d284c9b334b288d7311f3ef5c93cdbd74225a61bc9bb66faaba171aeba9544_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/59764413/8fa9835d2daec27414e665ae38e8e9b6eaea399cd82225c4bb43a5f658812cf6_big_gallery.jpeg)
There are typical "rat bite" juxta-articular erosions involving the right first digit, interphalangeal joint with regional soft tissue tophus and swelling.
There are incidental Morton's toes (2nd and 3rd digits).
Case Discussion
Adult male patient with known chronic gout. There are typical juxta-articular punched out or rat bite erosions and associated soft tissue swelling consistent with soft tissue tophi.