CYSTIC HYGROMA OF THE NECK

Abstract
Cystic hygroma of the neck is a comparatively rare condition and generally appears in children under the age of 5. It does, however, occur in adults, and my report includes the case of a patient 37 and another of a patient 18. Dr. Charles N. Hyatt reported two cases in which this condition occurred in adults, one patient being 19 and the other 20 years of age. It is usually present at birth or occurs sufficiently soon after birth to indicate that the condition is probably a developmental error. Arnold,1 who studied this condition most thoroughly as far back as 1865, concluded that a congenital defect was the underlying cause. Thompson and Keiller,2 in 1923, almost conclusively proved the following theory of origin to be true: In the 6 week embryo, the development of the lymphatic system is begun with the formation of the so-called lymph sacs, four

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