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. Author manuscript; available in PMC: 2023 Aug 11.
Published in final edited form as: Arch Pathol Lab Med. 2019 Apr 8;144(2):245–251. doi: 10.5858/arpa.2018-0190-RS

Figure 3.

Figure 3.

Characteristic flow cytometric findings in autoimmune lymphoproliferative syndrome (ALPS). A-B) The peripheral blood of ALPS patients will show an expanded population of CD3+ T-cells that are negative for both CD4 and CD8 (double negative, highlighted in red). C) The population of double negative T-cells should be positive for alpha-beta (α/ß) T-cell receptor (TCR).