Peripheral artery disease
Vascular injury<unk> 
Atheroembolism (AKA Blue Toe Syndrome)<unk>  embolism<unk>  thrombosis
Vasospastic Disorders
Raynaud’s disease
Primary erythromelalgia
Autoimmune
Scleroderma
SLE
Idiopathic
Thromboangiitis obliterans (Buerger's disease)
Chronic peripheral artery disease
Atherosclerosis obliterans
Atheroembolism (AKA Blue Toe Syndrome)<unk>  embolism<unk>  thrombosis
Raynaud’s disease
Primary erythromelalgia
Scleroderma
SLE
Thromboangiitis obliterans (Buerger's disease)
Atherosclerosis obliterans
Foot and toe fractures
Subtalar dislocation
Metatarsophalangeal joint sprain (turf toe)<unk> 
Calcaneal bursitis
Diabetic foot infection
Peripheral artery disease
Plantar fasciitis
Trench foot
Ingrown toenail
Paronychia
Tinea pedis
Morton's neuroma
Diabetic neuropathy
Acute arterial ischemia
Peripheral artery disease
Venous gangrene
Vascular injury
Wet gangrene
Missile embolus
Atheroembolism 
Dry gangrene