Tumors of the lymphatic system are not uncommon. They are of numerous types, either benign or malignant. A study of new growths and pathologic lesions of these structures brings forth the histologic characteristics of lymphoid tissue (figs. 1 and 2). They are lymphocytes, reticulum and endothelial cells. The most prevalent lesion developing from this tissue is the benign lymphoma. Another condition is that known as the leukemias. Many classifications have been formulated in regard to changes arising from these lymphoid structures. Ewing's1 classification is very complete. It is based on the origin, as well as on the anatomic and clinical findings. MacCallum2 has simplified it somewhat. For all practical purposes this classification answers the need of the clinician, though probably it is not as satisfactory to the pathologist as is that of Ewing.
In a discussion of lymphosarcoma of any particular anatomic region of the lymphatic system,
ZIEGELMAN EF. MALIGNANT DISEASE OF THE TONSIL: WITH SPECIAL REFERENCE TO LYMPHOSARCOMA. Arch Otolaryngol. 1932;15(5):697–709. doi:10.1001/archotol.1932.03570030718004
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