Extensive tophaceous deposits throughout the foot, centred predominantly at the ankle joint, the first metatarsophalangeal joint and the interphalangeal joint of the great toe. There is also a prominent deposit adjacent to the base of the 5th metatarsal.
Besides the rat-bite erosions to the head of the 1st metatarsal and the 1st toe phalanges, coarse erosions scattered throughout the midfoot and tarsometatarsal joints, even involving a type II accessory navicular bone.