Tonsillar T-cell immune phenotype.

<p>CD4(+) plus CD8(+) T-cells were purified from tonsillar samples followed by fluorescence assisted immune staining of CD45RA and CD62L for the determination of naïve/effector/memory T-cells. All shown measurements were performed on the mixed CD4(+)CD8(+) preparations. See text for further details. <b>(A)</b> Representative histogram of a double staining for CD45RA and CD62L. <b>(B)</b> Quantification of all single and double positive CD45RA/CD62L populations for the various tonsillar disease groups. <b>(C)</b> Flow cytometric determination of CD45R0 expression on tonsillar T-cells. CT = chronic tonsillitis; PTA = peritonsillar abscess; HY = tonsillar hyperplasia; ton = tonsil; abs = abscess.