. Transactions . the result of iiilhiimiint ion, oi* )Kili!i])s of co])i()Us litemorrliage, befoie the sarcomn hcuan. Of these two strata the outer one, lyin^- between the SARCOMA OF THK (HOKOID. 97 sarcoma and the sclerotic, and sharply marked oft fromboth, is irregularly laminated and permeated by numerousspaces, wliich have the form of thin, wedge-shapedcrystals, and were no doubt occupied by cholesterin untilthe specimen was put into alcohol (Fig. 23, c, Fig. 2G, a,and Fig. 27). The layers of this stratum nearest thesclerotic are much pigmented, the remainder less so ; Fig. a. Choles
. Transactions . the result of iiilhiimiint ion, oi* )Kili!i])s of co])i()Us litemorrliage, befoie the sarcomn hcuan. Of these two strata the outer one, lyin^- between the SARCOMA OF THK (HOKOID. 97 sarcoma and the sclerotic, and sharply marked oft fromboth, is irregularly laminated and permeated by numerousspaces, wliich have the form of thin, wedge-shapedcrystals, and were no doubt occupied by cholesterin untilthe specimen was put into alcohol (Fig. 23, c, Fig. 2G, a,and Fig. 27). The layers of this stratum nearest thesclerotic are much pigmented, the remainder less so ; Fig. a. Cholesterine-bearing layer of old laminated stnicture onscleral surface of the sarcoma, h. The tumour, with numer-ous blood-spaces, c. Situation of sclerotic. (Photograpliby Mr. J. Herbert Parsons.) the stratum contains neither blood-vessels nor staininir-cells ; it covers, in varying thickness, the greater part ofthe tumour, being quite absent only over the marginal,comparatively avascular, periphery (Fig. 23, />), and overthe most prominent central part, where the sclerotic isextremely thin, and in direct contact with the cholesterine-bearing stratum varies in thickness fromless than 0*5 mm. to fully 2 mm. (Fig. 23). VOL. xxiv. 7 98 DISEASES OP THE RETINA AND CHOROID. The Other stratum, ly^^^o between the sarcoma and thedisorganised retina (Fig. 23, d), is thinner, less extensiveand has the structure of dense, wavy fibrous tissue, withscattered oval nuclei (Fig. 26, b, Fig. 28, a) ; large masses of Fig. 27.
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Keywords: ., bookcentury1800, bookdecade1880, bookpu, booksubjectophthalmology
