Hypertrophy of the abductor digiti minimi muscle simulating a localised soft tissue mass

Clinical appearance of the soft tissue mass at the lateral aspect of the left foot.

(a and b) MRI scans showing the abnormal uptake of the abductor digiti minimi muscle with localised contrast agent uptake (round marker on the lateral side of the foot).

Intraoperative aspect of the hypertrophic muscle belly before resection.

Microscopic appearance of the resected tissue showing the different size and diameter of the muscle fibres (HE staining, magnification 40×).