Flow cytometric analysis of duodenal cells obtained from patient B, showing the change in the percentage of aberrant T-cell population before and after ASCT. Aberrant population is shown as CD7⁺CD3⁻ within CD103⁺ lymphocytes (left) or as cytoplasmic (cyt) CD3⁺ surface (surf) CD3⁻ within lymphocyte gate (right). Normal range for cyt CD3⁺ surf CD3⁻ % of CD103⁺ lymphocytes is 10% or less.