Vascular compression syndromes represent a group of rare and poorly understood diseases. Dunbar syndrome (DS) is caused by the median arcuate ligament of diaphragm originating lower than normal and causing compression of celiac artery. The Nutcracker is caused by the superior mesenteric artery (SMA) originating from aorta at an acute angle causing a restriction of aortomesenteric space that is traversed by the left renal vein and duodenum; if the compression involves only the left renal vein and becomes symptomatic it is called Nutcracker syndrome; if the symptomatic compression involves only the duodenum it is called Wilkie's syndrome or SMA syndrome. The knowledge of these rare pathologies is essential to reduce the false negatives which still remain very high; it is, therefore, necessary to promote greater knowledge as the lack of diagnosis can be very dangerous for the patient's health. We describe a rare case of a combination of DS, Nutcracker, and SMA or Wilkie's syndrome in a young patient.
Thoracic outlet syndrome is a rare neurovascular disease, usually caused by compression of subclavian vessels and/or brachial plexus by a cervical rib or hypertrophic scalene muscles. When the subclavian artery is compressed, it can cause perfusion deficiency with cyanosis and greater fatigue of the upper limb; if the subclavian vein is compressed, it can cause venous congestion with swelling and pain in the upper limb. When compression affects the brachial plexus, it can cause tingling or paresthesia of the upper limb. It can be mono or bilateral, congenital, or acquired. The diagnosis of vascular alterations is difficult due to the rarity, poor knowledge, and nonspecificity of symptoms. Ultrasound allows to localize and measure the vascular stenosis degree. Failure to diagnose can expose patients to serious health risks. We describe a rare case of venous compression caused by anterior scalene muscle hypertrophy.
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