214 



The Lymphocyte and Lymphocytic Tissue 



Fig. 17-5. Case 5, chronic 

 lymphatic leukemia. (A) Bone 

 marrow, 1953, area of normal 

 myeloid tissue, (x 100) (B) Bone 

 marrow. 1959, large island o[ 

 lymphatic tissue (LT) sharply 

 demarcated from normal mye- 

 loid tissue (MT). (X 80) 



of small lymphocytes. There was lymphatic: metaplasia of the area between 

 the nearest fat spaces (Fig. 17-5D) adjoining the lymphatic nodule. However, 

 there still was adequate myeloid tissue (Fig. 17-5C). Had this patient been 

 treated in 1953, the 6-year "remission." which would have been assumed, 

 would have been considered a therapeutic triumph. 



Case 6 represents a common situation, that of a patient with fairly ad- 

 vanced chronic lymphatic: leukemia. At the age of 73 in 1950, the patient 

 noted lymphadenopathy and mild purpura. In 1952 physical examination 



