Types
Patients may present with acute limb ischemia and/or symptoms of chronic peripheral artery disease
- Inflammation of the tunica intima with neutrophilic infiltration and micro abscess formation (endarteritis) leads to inflammation that may also spread to the tunica media but the internal elastic lamina usually remains intact
- The rest of the vessel wall is usually relatively spared and development of cell-rich, inflammatory thrombi in the lumen causes occlusion of the vessel
- Mononuclear cells, fibroblasts, and giant cells replace neutrophils. Contiguous extension of the inflammatory process to the adjacent vein and nerve, resulting in the encasement of the artery, vein, and nerve in a fibrous sheath
Early manifestations:
- Triad of Intermittent claudication of affected extremity
- Raynaud’s phenomenon and
- Migratory superficial vein thrombo phlebitis
Late manifestations
- Rest pain
- Cool peripheral extremities
- Trophic nail changes
- Ulceration and/or gangrene of fingertips and/or toes (digits may auto amputate)
- Normal brachial and popliteal pulses but poor/absent radial, ulnar, anterior tibial, posterior tibial, and/or dorsal pedis pulsations