Cervical Ribs in Children.
—Southam and Bythell1 have studied 2,000 roentgenograms of children at the Royal Manchester Children's Hospital, and found in this collection only nine cases of cervical ribs. These were bilateral in all except one case. In their own experience, they have observed four cases, making a total of thirteen cases in all. Ten of these were in females. Their conclusions are that cervical ribs are congenital abnormalities. In the thirteen recorded cases, twelve were bilateral and ten occurred in girls. Roentgen-ray examination is the only method of revealing the condition. Symptoms from cervical ribs do not appear until adult life is reached. The delay in the onset of symptoms may be due to ossification of the rib, which is not complete until about the twenty-fifth year. In young children, however, cervical rib may rarely give rise to definite symptoms in the upper arm, simulating