This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1883 edition. Excerpt: ... be considerable pigment disturbance in any of these phases, but mostly in the atrophic form, and then either the whole surface of the patch, or its periphery only, may be of a bistre, brown, or black color. The patches of morphosa tend to the rounded form, and vary commonly from the size of a half-crown to the palm of the hand, but they may be of irregular shape, or in the form of bands, and may exist as tiny spots (see also Atrophia cutis), or cover extensive areas by confluence (see Scleroderma). In number there may be only a single patch, at any rate for some time, or only two or three, or a great many, and though they do coalesce, it is remarkable how they tend to remain isolated. The favorite sites are the base of the neck and upper part of thorax, the submammary region, the abdomen, the forehead, and then the extremities, especially the proximal parts, but no part can claim exemption. Its distribution also bears a relation which is very marked, in some cases, to that of the cutaneous nerves, as over the first division of the fifth; and again, it may be markedly unilateral, and only show apparent symmetry when the patches are bilateral and multiple. Mr. Hutchinson, indeed, goes so far as to say that the laws of distribution of herpes zoster apply here also. The onset and course of the affection are essentially chronic and insidious, one patch succeeding another after some interval, and attention may only be drawn by some local tingling, or itching, or numb feeling. Occasionally, the progress is more acute. The patches may remain stationary a long time, or come and go for many years (over thirty certainly), or the whole thing may clear up spontaneously. The prognosis is fairly favorable. It occurs mostly in females of weakly constitution and...
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