In a previous paper,1 I have communicated certain observations with regard to the thymus gland. At this time I wish to report further and more detailed observations on this gland. This report covers a careful study of 135 children under 2 years of age. Thirteen of these children have been studied by serial roentgenograms and serial physical examinations from birth to the age of 3 years, in order that we might have some conception as to what happened to the thymus the year following the 2 year period. The medical literature is rich in studies and investigations of the thymus gland, dating back to the time of Galen, and I can do no better than to refer the reader to Crotti's summaries as found in his text, "Thyroid and Thymus."
The thymus gland is situated in the upper mediastinum, overlapping the great vessels and the base of the
WASSON WW. THE THYMUS GLAND. Arch Otolaryngol. 1926;4(6):495–511. doi:10.1001/archotol.1926.00590010525004