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Show 210 MR. J. B. SUTTON ON DISEASES OF [Apr. 20, back. However, an examination of such pieces of the cord as remained showed well-marked and indisputable sclerotic changes. In 1842 Sir James Paget and Dr. William Budd ' almost simultaneously directed attention to the frequent symmetry exhibited by disease of the tissues of the body. For example, an eruption on the skin of one leg is occasionally imitated by an eruption on the opposite leg, symmetrical, not only in position, but often in the sbape of the patch, in the grouping, and even in the number of spots in each group. This symmetry is not merely confined to skin eruptions, but to diseases of the joints, sense-organs, nerves, bones, tumours, &c. Examples of symmetry occur very frequently in animals as a result of disease; and the following cases will serve as striking instances. In the accompanying drawings (fig. 3) vi ill be seen the scapula Fig. 3. Examples of symmetrical exostoses (c) in the skeleton of a Monkey, affecting the scapula, great trochanter, and coracoid process. The tumours on the opposite bide were exactly similar in shape and situation, and nearly equal in size. and femur of a Bonnet-Monkey that died of bronchitis complicating rickets. The inferior angle of the scapula is occupied by an osseous tumour containing tracts of cartilage. The base of the coracoid process presents a rounded projection, which would probably have grown into a tumour had the Monkey lived. The great trochanter of the femur presents also a rounded tumour similar to that of the scapula, but containing less cartilage. Each humerus presented a 1 Med.-Chir. Trans, vol. xxv. |
