Most sensitive way to diagnose a neuroma?

• A. Imaging MRI
• B. Ultrasound
• C. History and physical
• D. Electromyography

Answer: (C)

Morton's neuroma is diagnosed most reliably through a careful clinical evaluation. The patient’s history often reveals focal forefoot pain that worsens with weight bearing or tight shoes, sometimes with numbness or burning between the toes. On exam, a clinician looks for tenderness in the intermetatarsal space and may reproduce symptoms with a forefoot squeeze or a Mulder maneuver, sometimes feeling or hearing a click as the intermetatarsal nerve is compressed. These clinical cues together provide the highest sensitivity for identifying the neuropathic forefoot pain pattern characteristic of a neuroma.

Imaging can help in uncertain cases or to rule out other pathologies, but its sensitivity varies and it may miss small neuromas or show non-specific findings. Ultrasound and MRI are useful adjuncts, yet they are not more consistently sensitive than a skilled history-and-physical examination. Electromyography is not typically sensitive for a focal interdigital neuropathy like Morton's neuroma.

So, the best initial and most sensitive approach is a thorough history and targeted physical examination that elicits the classic symptoms and provocative signs.