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 32-year-old marathon runner presents with persistent pain over the dorsum of the foot on weight- bearing. The most probable diagnosis is: and explain in detail?
Ans. C. March fractureA march fracture is the term used to describe a metatarsal stress fracture of the foot caused by excessive repetitive injury.It is therefore more common in athletes. Treatment is rest (an air-cast boot can be provided to reduce weight-bearing over the fracture site). Stress fractures are not always evident on plain radiographs, so the diagnosis may often be based on clinical examination alone for the first 2-3 weeks. MRI scans and bone scans are very helpful.