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There is a well-defined dumbbell shaped lesion in the 1st web space. It is separate from bones/ joints/ tendons. At rest, the lesion is more visible from dorsal view than planter view. With compression of toes, lesion pops up on dorsal aspect. With compression of the lesion on dorsal aspect, lesion pops up on plantar aspect. It measures about 21 x 20 x 12 mm. Lesion is solid, homogeneously hypoechoic without calcification/ cystic changes. Posterior acoustic enhancement present. There is intralesional flow.
Continuity of lesion with nerve was not looked for at the time of the scan.