Figure 1. Radiographs of the foot and ankle region of some studied cases .

a- Forefoot swelling and ulceration (u). Second toe phalangeal bone (s) amputation; b- Hallux amputation (a); c- Deep ulceration accompanied by soft tissue loss and bone loss at the fifth metatarsophalangeal joint (a). There is extensive refraction, erosion, and resorption of the middle and proximal phalanges of the fourth toe (b); d- Hallux, second, and fifth toes were amputated (a). An old fracture of the proximal phalangeal bones of the third and fourth toes (b); e- An ulcer and gas lucencies (u) near the heel region suggest infection or gangrene. The intratarsal and tarsometatarsal joints were affected by erosions, fragmentations, deformities, and Charcot's arthropathy (c); f- The hindfoot is rarefacted, eroded, and fragmented (e).