You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A 20 year old male goes swimming . After a few days he develops itching with rashes over his body diffusely. He ignores it until several weeks later he develops lancinating pain down his legs and all of his toes. Within a few days he develops paraparesis and problems with bowel and bladder control with resultant urinary retention. What is your approach to this patient and explain in detail?
MRI is the best emergent test as it will show compressive lesions as well as infections and vascular lesions  .initiating anticoagulation will cause bleeding in case of AV malformations , so it is excluded.