Thoracic outlet syndrome is a group of disorders that occur when blood vessels or nerves in the space between your collarbone and your first rib (thoracic outlet) are compressed. This can cause pain in your shoulders and neck and numbness in your fingers.Click to see full answer. Then, what does it mean to have hypoplastic ribs?Hypoplastic (short) and defective (interruption) ribs are one of the least common structural congenital abnormalities of the ribs. Short rib is diagnosed if the lateral margin of the affected rib is more than 4-mm medial to a tangent drawn between the lateral margins of adjacent ribs.Additionally, is cervical rib dangerous? A cervical rib is an abnormality that’s present from birth. It doesn’t usually cause problems, but if it presses on nearby nerves and blood vessels, it can cause neck pain, numbness in the arm and other symptoms, which collectively are known as thoracic outlet syndrome. Also know, what causes rib pain? The most common causes of rib cage pain are a pulled muscle or bruised ribs. rib fractures. diseases that affect the bones, such as osteoporosis. inflammation of the lining of the lungs.How do you know if you have a cervical rib?If the extra rib does press on a vessel or nerve, you may have any of the following symptoms: pain in the shoulder and neck, which spreads into the arm: this may come and go or be constant. moments where you lose feeling and have weakness or tingling in the affected arm and fingers.