| Type | MGI:General | Description | >65% of heterozygotes develop T cell lymphomas at an average age of 120 days the predominant malignant cell type is positive for the CD3-TCRalphabeta complex and Thy1 individual lymphomas vary in stage of T cell maturity, with CD44-25-4-8+ and CD44-25-4+8+ stages of differentiation found in 32.5% of heterozygotes |