23/04/2025
I had a very interesting patient in clinic this week, who came in as an emergency with a swollen, painful big toe. When assessed, I discovered that there was a digital myxoid cyst, also called a digital mucous cyst on the last joint of the big toe, just under the surface of the skin, which was shiny with a clear fluid inside. They are more commonly found on the fingers, but can also develop on the toes.
The fluid inside a myxoid cyst is synovial fluid, a thick, jelly-like substance that normally lubricates and cushions joints and tendons. This fluid can leak from the joint and form a cyst below the surface of the skin. They are more frequent in women, and typically occur in individuals aged 60 and over. In younger individuals, trauma or repetitive use of the affected finger or toe may contribute to their formation. These cysts can sometimes leak clear, slightly sticky, or blood-tinted contents, and very rarely are over 1cm in size.
Digital myxoid cysts grow slowly over months and are generally painless, though tenderness can occur if they are bumped or squeezed in a shoe.
If a digital myxoid cyst does not cause any symptoms, no treatment is required, but if they become painful, red and swollen there are a number of different treatment options, including surgical removal. With all treatments, however, it is possible that the digital myxoid cyst might reoccur.
On this occasion, I was able to drain the cyst of most of the mucus which gave instant pain relief to the patient and the toe was dressed to prevent infection.
I love my job π£ππ£ππ£π
All pictures posted with patient consent.