When do you consider sciatic nerve imaging in cases of foot drop without clinical or EMG involvement beyond the peroneal nerve without clearly indentified compression site?

I think it would be reasonable to image the sciatic nerve in this scenario. Many sciatic neuropathies especially those caused by compression, or inflammatory (vasculitic) lesions, tend to affect the peroneal division much more than the tibial, therefore clinically mimicking a peroneal neuropathy. Th...