Although myxedema following treatment for toxic goiter has been reported frequently before, we wish to call attention to certain of its aspects which we regard as particularly worthy of emphasis, viz., (a) the existence of two types-temporary and permanent, (b) the rarity of the permanent type, (c) its late onset after x-ray therapy, (d) its occurrence following untreated toxic goiter. The permanent type will be considered first.
I. PERMANENT MYXEDEMA FOLLOWING TREATED THYROTOXICOSISA. Rarity In the pioneer days of goiter surgery, when thyroidectomies were usually complete, post-operative myxedema was very common, occurring in at least 33 per cent of the cases thus treated.4 It was noted, however, that when thyroidectomies had been partial the incidence was only 1 per cent (1). The latter method soon supplanted the former, with the result that permanent myxedema became, and in general has remained, a practically negligible sequel to the surgical treatment of goiter.Judd (2)