Abstract
Purpose: To prospectively evaluate changes in splenic volume (SV) on serial CT of patients with lymphoma and correlate them with other indicators of the disease process.
Material and Methods: SV was calculated in 290 abdominal CT examinations of 58 consecutive adults with lymphoma (42 non-Hodgkin's lymphoma, 16 Hodgkin's disease). Each patient had one CT investigation before, 2 during chemotherapy and 2 post-chemotherapy. The changes in SV were correlated with clinical, laboratory and other imaging indicators of the disease process.
Results: Three groups of patients were identified. Group A (n=20) presented no changes in SV, showed no splenic parenchymal abnormalities and had normal SV and serum lactic dehydrogenase (S-LDH). Group B (n=25) presented a decrease in SV during treatment suggesting response to therapy. Splenic parenchymal abnormalities (n=5) and other subdiaphragmatic sites of involvement (n=20) underwent remission during treatment. Eighteen patients with high S-LDH at presentation showed normal values during therapy. Group C (n=12) showed an increase in SV post-therapy associated with manifestations of disease recurrence. The S-LDH levels were elevated in 10 patients at the same time.
Conclusion: Quantitatively assessed splenic size on CT may serve as an indicator of splenic involvement in the course of lymphomas.
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