. The breast: its anomalies, its diseases, and their treatment . reater number of patients (Koehler, 57 per cent.;Deiss, 51 per cent.). In only 15 per cent, of Winckels cases was there a history of morethan three pregnancies, while 26 per cent, of Deisss cases were among second paraeand only to 4 per cent, among women who had borne more than four children. It is possible therefore for a patient to escape mastitis in several pregnancies, andto suffer with abscess formation in a subsequent one. Cases of this kind become in-fected through abrasions of the nipple rather than as a result of asc
. The breast: its anomalies, its diseases, and their treatment . reater number of patients (Koehler, 57 per cent.;Deiss, 51 per cent.). In only 15 per cent, of Winckels cases was there a history of morethan three pregnancies, while 26 per cent, of Deisss cases were among second paraeand only to 4 per cent, among women who had borne more than four children. It is possible therefore for a patient to escape mastitis in several pregnancies, andto suffer with abscess formation in a subsequent one. Cases of this kind become in-fected through abrasions of the nipple rather than as a result of ascending infectionof the milk ducts. The comparative incidence of acute pyogenic mastitis among diseases of the breastvaries in the statistics of different authors, but Winckels estimate which places it asconstituting 15 per cent, of all breast diseases we believe to be approximately correct. Puerperal mastitis attacks the two breasts with equal frequency and is bilateral infrom 15 to 30 per cent, of the cases. In Winckels series the right breast was affected in. 170 THE BREAST 35 per cent., the left breast in 48 per cent, and both breasts in 16 per cent, of the involvement of the breasts is uncommon, the inflammation in one organfollowing that in the other at varying intervals but usually before resolution has begunin the organ primarily diseased. As regards the location of the inflammation, most cases belong to the intra-mammaryvariety. Non-glandular mastitis generally affects the sub-areolar or subcutaneoustissues, the retro-mammary form being comparatively rare. Intra-mammary mastitismay involve any part of the parenchyma, but in one-half or more of all cases the lowerouter quadrant of the breast is affected. The entire breast may be involved, in neg-lected cases. In the primary diffuse gangrenous forms of mastitis the entire breast
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbreast, bookyear1917
