The Journal of laboratory and clinical medicine . aths ofhyalin connective tissue (Plate II, Fig. 4). The sebaceous glands are almostabsent and only fibroid remnants of them are to be found around the base ofthe hair follicles. The sweat glands are fairly normal, perhaps show a slightfibrosis. Here and there we find throughout the stratum corium areas of round-celled infiltration (Plate II, Fig. 4), usually perivascular but not always. ThisGurd interprets as a healing reaction to the injury caused by light on the sensi-tized skin. Spleen.—There is the usual picture of atrophy. The sinuses are
The Journal of laboratory and clinical medicine . aths ofhyalin connective tissue (Plate II, Fig. 4). The sebaceous glands are almostabsent and only fibroid remnants of them are to be found around the base ofthe hair follicles. The sweat glands are fairly normal, perhaps show a slightfibrosis. Here and there we find throughout the stratum corium areas of round-celled infiltration (Plate II, Fig. 4), usually perivascular but not always. ThisGurd interprets as a healing reaction to the injury caused by light on the sensi-tized skin. Spleen.—There is the usual picture of atrophy. The sinuses are engorgedwith blood. No evidence of increased blood destruction as reported by someobservers is seen, either as evidenced by phagocytosis of red cells or increasedpigmentation. Bone-marrow.—The red marrow is increased in quantity and very activethroughout all the bones. Microscopically the sections of the marrow are nor-mal except for a general hyperplasia as is seen in any moderately severe anemia. General Pathology of Pellagra 231 PLATE Fig. infarct of heart. .v^-^r-^ 3 Vj>^
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