. The thyroid gland in health and disease. ^<*«f Fig. 18.—Section of colloid goitre from human siibject. Note, great irregularityin shape and size of vesicles, their distension with colloid ; the evidences of hyper-plasia in the form of buds, sprigsand cellular areas ; increase of fibrous stroma. X 50. gland reverting in the intervals to the colloid state. So also inpregnancy successive attacks of hyperplasias may occur withsuccessive pregnancies, periods of rest alternating with periodsof activity. A stage is ultimately reached when the secretionfinds its way less readily into the lymph ch
. The thyroid gland in health and disease. ^<*«f Fig. 18.—Section of colloid goitre from human siibject. Note, great irregularityin shape and size of vesicles, their distension with colloid ; the evidences of hyper-plasia in the form of buds, sprigsand cellular areas ; increase of fibrous stroma. X 50. gland reverting in the intervals to the colloid state. So also inpregnancy successive attacks of hyperplasias may occur withsuccessive pregnancies, periods of rest alternating with periodsof activity. A stage is ultimately reached when the secretionfinds its way less readily into the lymph channels. The colloidbecomes more and more viscid, owing possibly to specific chemicalchanges, and is dammed up in the vesicles by the increasingstroma. 70 PATHOLOGY There may also develop in the gland rounded or circumscribedmasses apart from the main body of the goitre (figs. 19, 20).. tf ..-C -^ Fig. 19.—Collection of round cells and multiplying parenchyma cells in thyroidof mouse fed on faecal material. X 200.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkwilliamwood
