. General surgical pathology and therapeutics, in fifty-one lectures .. . e are thusaffected; sometimes chiefly the deep muscular veins, often both arealike affected. But there are also varicosities in the smallest veins ofthe cutis, which are scarcely visible to the naked eye, these are oftenthe only ones affected; this gives an even, light-blue nodular appear-ance to the skin. As a result of this distention of the veins, whichoccurs very gradually, more serum than usual escapes from the capil-lary vessels, as the lateral pressure in them is greatly increased bythe distention of the walls of
. General surgical pathology and therapeutics, in fifty-one lectures .. . e are thusaffected; sometimes chiefly the deep muscular veins, often both arealike affected. But there are also varicosities in the smallest veins ofthe cutis, which are scarcely visible to the naked eye, these are oftenthe only ones affected; this gives an even, light-blue nodular appear-ance to the skin. As a result of this distention of the veins, whichoccurs very gradually, more serum than usual escapes from the capil-lary vessels, as the lateral pressure in them is greatly increased bythe distention of the walls of the veins, and the consequent insuffi-ciency of the valves. The thinning of the walls of the vessels, andthe transuded excess of nutrient material, may be gradually followedby escape of wandering cells, and their organization to new tissue;thus we have a serous, then cellular infiltration, and thickening of thetissue traversed by the varices; red blood-cells may also escapethrough the capillary Avails ( Cohnheim). We have already explained VARICOSE VEINS. 577 Fig.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjecttherapeutics, bookyea
