. The pathological anatomy of the ear . ewithout much loss of substance, the healing takes 1 On multiple perforation of the drum-membrane compare C. E. , 0., iv., S, 277. ^ I once saw a wonderful instance of this in a case in which I had ex-cised more than two thirds of the drum-membrane and had also removedthe entire hammer. After some weeks the whole opening was closed bya newly formed membrane. 80 PATHOLOGY OF THE EAR. place without leaving any visible pathological changeon the membrane ; in older and larger perforations apersistent cicatrix results. The drum-membrane be-come
. The pathological anatomy of the ear . ewithout much loss of substance, the healing takes 1 On multiple perforation of the drum-membrane compare C. E. , 0., iv., S, 277. ^ I once saw a wonderful instance of this in a case in which I had ex-cised more than two thirds of the drum-membrane and had also removedthe entire hammer. After some weeks the whole opening was closed bya newly formed membrane. 80 PATHOLOGY OF THE EAR. place without leaving any visible pathological changeon the membrane ; in older and larger perforations apersistent cicatrix results. The drum-membrane be-comes at first pale and dry, the edges of the perfora-tion become thin, and with strong illumination ap-pear to be translucent, and closure occurs from thegrowth of connective tissue from the edges. Not infrequently broad bands of blood-vessels areseen running from the edges of the perforation to-wards the periphery of the drum-membrane, butafter the closure of the opening these gradually dis-appear, although they may remain visible on the.
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