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. 2023 Mar 17;50(8):2282–2291. doi: 10.1007/s00259-023-06157-9

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© The Author(s) 2023

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Fig. 1 — Examples of preoperative imaging in patients with head-and-neck melanoma (first two rows where first row is ICG-^99mTc-nanocolloid) and PeCa (last two rows, where first row is again ICG-^99mTc-nanocolloid). From left to right A early planar lymphoscintigraphy; B lymphoscintigraphy after 2 h with the location of the SNs (arrows); C a 3D volume rendering of the SPECT/CT (arrows). SN sentinel node, IS injection site, H&N head-and-neck