![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRz4TTzcvlzc2MSP55XraA0sovZTDzzCMrr4hdGtAfmTgelH897gojXV8l35q0onsZNbSzwAPUr60RDIw2I6eTRan-bp7KFoRXTo6NdDmpkW2bqWxCJH68qwgfhWI2PmE88_D3e6GIFZlU/s280/dorsal+dermal+sinus.png)
Dorsal dermal sinus, a congenital abnormality associated with spinal dysraphism, can serve as a path for spread of infection inside the spinal thecal sac with its sequelae. Intramedullary abscess formation is an uncommon complication and very few have been reported in the English literature.