Evaluate for soft tissue abnormality of the left foot. There is an oval enhancing soft tissue mass with sharp discrete margins in between the third and fourth distal metatarsal bones, extending from the articulation of the metatarsophalangeal joints to the metatarsal necks with mild tracking under the metatarsal heads. The mass appears to have lower signal than muscle on T1 sequence and increased T2 signal and demonstrates pronounced enhancement on postcontrast images. The metatarsal bones are distinct and there is no evidence of abnormal signal and adjacent osseous structures. There is mild adjacent soft tissue edema. The remainder of the osseous and soft tissue structures are unremarkable.
Soft tissue mass between the third and fourth distal metatarsal bones with sharply discrete margins and pronounced enhancement on postcontrast imaging. No significant secondary findings such as adjacent osseous destruction or infiltration is present. This is most suggestive of a Morton's neuroma or intermetatarsal bursitis, with other differential considerations such as infection and neoplasm less likely given the absence of secondary findings.