Presentation
Patient with direct trauma to the foot. Projection to rule out a fracture.
Patient Data
Radiograph of the right foot showing an accessory bone between the fourth and fifth metatarsals. The extra metatarsal and the fifth metatarsal join at their heads without bony fusion, forming a single joint.
Polydactyly is not recognized and the phalanges are morphologically normal.
The annotated image highlights the findings.
Case Discussion
Polymetatarsia is an anomaly characterized by one or more additional metatarsals. Usually found with a supernumerary digit (polydactyly), polymetatarsia without polydactyly is a rare variant.
The finding in this patient was incidental as he did not present any discomfort associated with the variant.