. The endocrine organs; an introduction to the study of internal secretion . : •- ;v-- •«• -- —. — c. e. ves. FIR. 15.—Section of parathyroid of dog, eighty-three days after thyroidectomy.(Halpenny and Thompson.) The gland now contains a large number of irregularvesicles and exhibits signs of hypertrophy and increased activity. , epithelium of vesicles; , epithelium between vesicles; c., colloid; ,cavity of vesicle. in exophthalmic goitre (fig. 26, p. 38). The same observers state thatafter removal of all the parathyroids the vesicles of the thyroid tissue 1 It is
. The endocrine organs; an introduction to the study of internal secretion . : •- ;v-- •«• -- —. — c. e. ves. FIR. 15.—Section of parathyroid of dog, eighty-three days after thyroidectomy.(Halpenny and Thompson.) The gland now contains a large number of irregularvesicles and exhibits signs of hypertrophy and increased activity. , epithelium of vesicles; , epithelium between vesicles; c., colloid; ,cavity of vesicle. in exophthalmic goitre (fig. 26, p. 38). The same observers state thatafter removal of all the parathyroids the vesicles of the thyroid tissue 1 It is suggested by Guleke that the authors were here dealing not with a parathyroidbut with an accessory thyroid. The parathyroids usually remain unaltered in myxoedema :Forsyth has, however, described one case which was an exception to this rule (Trans. , 1907). Biedl has also recorded the development of colloid-containing vesicles in theparathyroid in a case of atrophy of the thyroid in man. Development of Parathyroids 21 itself take on a similar appearance, becoming large and irr
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