Findings are consistent with Charcot foot, secondary to chronic diabetic neuropathy which affects the intertarsal joints resulting in joint disorganization, dislocation and destruction.

Mnemonic of Charcot joint (6 Ds)

• dense bones (subchondral sclerosis)
• degeneration 
• destruction of articular cartilage
• deformity
• debris (loose bodies)
• dislocation

Diffuse soft tissue calcifications of the lower leg are one of the complications of chronic uncontrolled diabetes Mellitus, which can mimic changes of chronic venous insufficiency or scleroderma (calcinosis circumscripta) ¹.