A 45-year-old woman presents with burning pain and tingling between the third and fourth toes, worsened by walking in tight shoes. Examination reveals a palpable click (Mulder's sign) with lateral forefoot compression. The most likely diagnosis is:
- A Plantar fasciitis
- B Intermetatarsal bursitis
- C Morton's neuroma ✓
- D Metatarsophalangeal subluxation
Correct answer: C. Morton's neuroma
Explanation
Morton's neuroma is a perineural fibrosis of the interdigital nerve, most commonly in the third webspace. It presents with burning pain radiating to the toes, worsened by narrow shoes. Mulder's click is produced by squeezing the forefoot while palpating the affected webspace. Plantar fasciitis causes heel pain, not forefoot pain. MTP subluxation (predislocation syndrome) causes diffuse forefoot pain with toe deformity, not a webspace click.
Reference: Coughlin, Salturan, and Anderson's Mann's Surgery of the Foot and Ankle, 10th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.