Eosinophilic Granuloma of Parotid Gland and Thymus

Introduction Since the term "eosinophilic granuloma" was coined by Lichtenstein and Jaffé1for a recognized bone lesion in 1940, and since the suggested nosologic relationship between Hand-Schüller-Christian, Letterer-Siwe, and eosinophilic granuloma of bone by Farber,2numerous reports of histologically similar lesions have been reported in the following locations: lung,3gastrointestinal tract, particularly the stomach,4skin,5,6urinary bladder,7 prostate, and vulva.8It is the intent of this paper to report a case of "eosinophilic granuloma" of the thymus and a case of eosinophilic granuloma occurring in the parotid glands, bilaterally; these both occurred in children. Report of Cases Case1.—This 12-year-old Chinese male was well until three days before admission when he developed fever of 101 F in the evening. During this time he complained of headache, anorexia, epistaxis, and arthralgia of the right knee and left ankle. He was admitted to the hospital with