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. 2022 Aug 16;88(4):1627–1637. doi: 10.3233/JAD-215558

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Fig. 1 — Examples of the four tau ¹⁸F-MK6240 PET visual classification categories. Representative tau ¹⁸F-MK6240 PET SUVR images for participants classified as A) tau negative; B) LP predominant; C) MTL-sparing; and D) Typical. The red boxes highlight ¹⁸F-MK6240 tracer retention in a “hook”-like distribution, observed in the LP and Typical cases, and the relative absence of ¹⁸F-MK6240 tracer retention in these structures in the MTL-sparing case, where instead tracer retention is observed in the inferior temporal lobe.