Kelly a 30-year-old marathon runner presents with a gradual onset of persistent pain at the base of the first metatarsal, which intensifies during long runs and eases with rest. Examination reveals localized swelling, tenderness on palpation, and pain during passive extension of the big toe. Radiographs show no fractures but a slight increase in the space between the first and second metatarsal bones. What is the MOST likely diagnosis?
A) Turf toe
B) Sesamoiditis
C) Hallux valgus
D) Metatarsalgia
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