As the atypical forms of exophthalmic goiter are common and often overlooked on account of the nomenclature, it would be more accurate and at the same time less confusing to designate the condition as hyperthyroidism or simply thyroidism. The cases can be classified somewhat in the order of frequency of their occurrence in the following groups:
Simple chronic exophthalmic goiter or thyroidism of moderate severity with all the symptoms which gave origin to the name.
Atypical thyroidism which includes many of the early cases and those with more or less irregular symptoms, such as absence of goiter or of exophthalmos or of both; or those which complain chiefly of gastrointestinal disturbance with pain.
The chronic toxic cases of thyroidism or severe forms of the disease with slight fever, which may be the terminal stage of the common atypical form, or show little or no exophthalmos or goiter from the outset.
ROGERS J. THE TREATMENT OF THYROIDISM BY A SPECIFIC SERUM.. JAMA. 1906;XLVII(9):655–660. doi:10.1001/jama.1906.25210090011002b