Nervous and mental diseases . re primary, theneuroglia and cellular structures being secondarilyinvolved in degenerative changes. Fatty changes inthe muscles are encountered in very old cases, andsometimes a peripheral nerve degeneration of aslight degree. Schiefferdecker and Schultze2 find the muscle fibers,fibrillar and nerve spindles diseased, but no change in the has described changes in the muscles indicating a toxic chronicnodular myositis, and occasionally patients do complain of tender mus-cular thickenings. C. D. Camp4 calls prominent attention to the para-thyroids and
Nervous and mental diseases . re primary, theneuroglia and cellular structures being secondarilyinvolved in degenerative changes. Fatty changes inthe muscles are encountered in very old cases, andsometimes a peripheral nerve degeneration of aslight degree. Schiefferdecker and Schultze2 find the muscle fibers,fibrillar and nerve spindles diseased, but no change in the has described changes in the muscles indicating a toxic chronicnodular myositis, and occasionally patients do complain of tender mus-cular thickenings. C. D. Camp4 calls prominent attention to the para-thyroids and suggests that their disease gives rise to the muscle changesthrough an auto-toxic effect. In 1897 the author treated many cases withdesiccated parathyroids prepared in the Armour Laboratory, but withoutappreciable benefit. Symptoms.—A typical case of Parkinsons disease presents a moststriking picture. The patient trots into the room with short, reluctantsteps, apparently following his center of gravity. The body is inclined. Fig. 234.—Parkinsonsdisease. Attitude. 1 Amer. Jour. Med. Sciences, Dec, 1899. 2 Deut. Zeit. f. Nervenheilk., Dec, 1903. 3 Riv. di pathologia nerv. e ment., 1906. i Jour. A. M. A., April 13,190 552 NEUBOSES. forward, the neck extended and rigid, the elbows flexed and slightlyabducted, bringing the hands, with their trembling fingers, to the levelof the groins. The face is mask-like, the eyes bright and patient turns bodily, deliberately, and rigidly. He sits down slowly,with precaution, on the edge of the chair, always leaning forward, hisshaking hands on his knees in constant motion. Every change of posi-tion is studied and reluctant. We may take up the symptoms in muscular rigidity is worthy of first attention, as it is thedominant motor phenomenon, causing the peculiar attitudes and pos-tures, the immobile face, and the slowness of movement. It is the motoranalogue of the mental inertia so common in this disease. It is nearly
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