These symptoms also occur in thoracic outlet syndrome where the same nerves as well as the subclavian artery and vein are compressed as they travel through the narrow space between the first rib and the clavicle.

前述症状在胸廓出口综合征中也会出现；胸廓出口综合征是由于上述神经以及锁骨下动静脉在穿过第一肋及锁骨狭窄间隙时受压造成的。

Thoracic outlet syndrome is a group of symptoms caused by compression of the brachial plexus and the subclavian artery and vein as they travel through the narrow space between the collarbone and first rib, called the thoracic outlet.

胸廓出口综合征是由于臂丛神经与锁骨下动静脉穿过胸廓出口（锁骨和第一肋之间的狭窄间隙）时受压迫而引起的一组症状。

This compression could be caused by a cervical rib, which is a congenital anomaly where an extra rib is located above the first rib; or by a Pancoast tumor, a type of lung cancer where tumor forms at the tip of the lung.

这种压迫可能由颈肋引起，颈肋即一种先天性异常：在第一肋上方出现一个额外的肋骨；也可能由肺上沟瘤引起，即肺尖处的一种肿瘤。