Among the congenital defects the absence of both clavicles is one of the rarest findings. In the available literature, I could find only twenty-two cases recorded in a paper by Hultkranz.1 According to this author, usually both clavicles are found missing (in only three cases was the defect found to be one-sided) and Hultkranz also states that except in two cases the defect was incomplete.
Through the kindness of Dr. C. R. Forrester, I am able to add another case to the two of complete absence of both clavicles.
The patient, W. M., aged 32, merchant, is of a normally developed family. His father died from an affection of the heart; his mother and one sister are living and, as far as his knowledge goes, do not show any abnormalities in the development of their skeleton. The patient is of small size with well-developed muscles. Neither clavicle can be