Morton neuroma and intermetatarsal bursitis

Discussion:

This case shows the typical findings of Morton neuroma and bursitis between the metatarsal heads.  Both conditions occur due to narrow shoes with compression/friction of the metatarsal heads when walking. Bursitis is bright on T2 with rim enhancement whereas the "neuroma" (actually perineural fibrosis) is of relatively low signal on T2 and shows patchy enhancement. Almost always between the 3rd and 4th metatarsal heads and very adequately visualized on ultrasound using a dorsal approach and placing a thumb on the plantar aspect and pushing up towards the probe.

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