. The DRUM LUMEN, see the Middle ear. DRUM And L , dactyls with kolbovidno-utolshchennoj a nail phalanx and truncated, often deprived lunulae, sharply protuberant nails getting the blessing giving „to it looking alike clock glasses (fig. 1 see). By whom it is yielded for the first time, to the featured change, the name , is not positioned; used sometimes for notation of such dactyls the name « dactyls» is wrong, changes only nails are featured. Meet at the pulmonary diseases conducting to a suppuration and decay of a fabric, preferentially at (also at , tbc than lungs with landfills, a gangrene, malignant neoplasms of lungs), at congenital heart diseases, , is more rare at nek-ryh other diseases (, a cirrhosis and so forth). Changes of trailer phalanxes educe normally within months, sometimes within several weeks, and can sometimes undergo to return development at treatment of the basic disease. Are normally observed equally from both sides (standing more feeblly and less often, than on arms), sometimes irregularly; secund development (an aneurysm subclaviae dex is on occasion featured. , Etc. ). As show X-ray diagrammes, the thickening of the extremities of dactyls descends only at the expense of soft parts (fig. 2 see). The parentage speaks or activity on fabrics of toxines, a Fig. of a Fig. of the aspirated from purulent and putrefactive locuses, or venous stagnation. Other theories (, a lesion, etc. ) have been offered also. The thickening of soft parts of trailer phalanxes, according to the majority of authors, is initial tubular bones («osteoarthropathie hypertrophiante pneumique» Marie).
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