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Constituent ratios of thymic index (TI) in 20 patients with thymic hyperplasia (TH) following chemotherapy. The change in thymic size before, during and after treatment were assessed by examination of serial thoracic CT scans using TI on a 0–5 scale. At the onset of TH, 55% of patients achieved a TI above 2; in contrast, 85% of patients prior to therapy and 95% of patients during therapy had a TI of 0–2.
