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[Lymphocytoma of the spleen--a separate nosological form requiring a specific management procedure]. 1996
The paper presents new findings in favor of recognition of splenic lymphocytoma (SLC). This disease was characterized by A. I. Vorob'ev and M. D. Brilliant in 1982 in terms of detailed clinicomorphological features, prognosis and optimal treatment policy. The study included 52 patients (mean age 53 years) of which 36 were females and 16 males. They were followed up for 5.7 years, on the average. SLC manifested clinically by splenomegaly with minimally enlarged lymph nodes, morphologically by nodular lymphocytic proliferates in the spleen, bone marrow and liver, diffuse or diffuse-nodular proliferation in the lymph node. Peripheral blood contained middle-size lymphoid cells with round nuclei. SLC immunophenotype exhibits moderate or marked expression of CD22 and membrane immunoglobulins, the absence of CD5, CD23 and EM receptor, combination of CR1-/ CR2+. Paraprotein secretion was recorded in 49% of cases. There were frequent autoimmune reactions, especially against erythroid cells and platelets (42%). Optimal therapeutic policy is expectation and eventual splenectomy producing a persistent clinical effect in 94% of patients. In progressive disease long-term therapy with cyclophosphamide is recommended. Thus, SLC is a mature-cell lymphatic tumor growing as a rule in the spleen. Its prognosis in valid therapy is favourable.
