Lymphomatoid Diseases Involving the Eye and Its Adnexa

The lymphomatoid diseases are exceedingly complex. Little is known about their pathogenesis. Accurate classification of all the conditions included under this broad term is at present impossible. This is due in part to the use of different nomenclatures and different criteria for histopathologic and hematologic diagnosis of the recognized entities. Failure to regard lymphomatoid diseases as ever changing processes requiring repeated biopsies of tissue and repeated studies of the blood throughout the clinical course has delayed the adoption of a uniform classification of the many types of abnormal lymphoid reactions. The chart prepared by Craver¹lists the lymphomatoid diseases and indicates their interrelationships and the questionable position of some borderline conditions. Numerous papers²dealing at least in part with classification have appeared in the general literature; perusal of these will emphasize the difficulty of presenting any group of cases in such a manner that they will meet with