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MR images show fatty atrophy of the abductor digiti minimi muscle suggestive of Baxter's neuropathy.
This case illustrates the pathognomonic MRI imaging appearance of the chronic phase of Baxter neuropathy which appears as isolated denervation changes and fatty atrophy of the abductor digiti minimi muscle of the foot. Those patients usually present with heel pain and can mimic plantar fasciitis clinically. Baxter neuropathy is related to inferior calcaneal nerve entrapment due to many causes including calcaneal spur formation and changes related to plantar fasciitis.
- 1. Donovan A, Rosenberg ZS, Cavalcanti CF. MR imaging of entrapment neuropathies of the lower extremity. Part 2. The knee, leg, ankle, and foot. (2010) Radiographics : a review publication of the Radiological Society of North America, Inc. 30 (4): 1001-19.