A case of bilateral polymetatarsia without polydactyly

Polymetatarsia without polydactyly is very rare as an isolated malformation. This is a case presentation of a patient in whom circumstantially an extra metatarsal of different morphology was found in each foot at the level of the fourth intermetatarsal space. In the right foot, the heads of the fifth metatarsal and accessory metatarsal stay together to form a single metatarsophalangeal joint and a thickening of the phalanges of the fifth toe. In the left foot, the extra metatarsal appears as a vestige of bone that does not produce morphological alterations in the forefoot. Malformations presented by the patient cannot be included in any of the current classifications for polydactyly, because they are complex and widespread, leaving no place to site exceptional cases such as the one presented.