What is bilateral rudimentary cervical ribs?

Cervical ribs are accessory ribs arising from the 7th cervical vertebrae. They are an anatomical variant discovered most times incidentally during a routine chest x-ray study. They are commoner in females, bilateral in 80% though often asymmetric and occur in about 0.5% of the population 1.

Can thoracic outlet syndrome be bilateral?

Occasionally, thoracic outlet syndrome is bilateral — meaning it occurs on both sides. People who are diagnosed with TOS on one side should have the other side checked, but they should not be treated unless they show definite signs or symptoms.

Is a cervical rib common?

A cervical rib, also known as a “neck rib” or “supernumerary rib in the cervical region,” is a congenital overdevelopment of the transverse process of a cervical spine vertebra. Cervical ribs tend to occur in approximately 0.5 to 1% of the population. They are commonly attached to the seventh cervical vertebra.

How rare is a cervical rib?

Is the lumbar rib a bilateral or unilateral rib?

Lumbar (or 13th) ribs are a rare anatomical variant and represent transitional vertebrae at the thoracolumbar junction with a prevalence of ~1% 1. It presents as an additional rib coming off T13 or L1 (depending on numbering classification) and may be unilateral or bilateral.

Is the 13th rib a unilateral or bilateral rib?

Dr Henry Knipe ◉ ◈ et al. Lumbar (or 13th) ribs are a rare anatomical variant and represent transitional vertebrae at the thoracolumbar junction with a prevalence of ~1% 1 . It presents as an additional rib coming off T13 or L1 (depending on numbering classification) and may be unilateral or bilateral.

What kind of pain does the twelfth rib syndrome cause?

The twelfth rib syndrome appears to be a fairly common and underdiagnosed chronic pain syndrome. It is more common in women than men (3:1) and is usually described as a constant dull ache or sharp stabbing pain that may last from several hours to many weeks.

How many lumbar ribs are there in the human body?

Lumbar (or 13th) ribs are a rare anatomical variant and represent transitional vertebrae at the thoracolumbar junction with a prevalence of ~1% 1.