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. 2016 Dec 9;11(12):e0166836. doi: 10.1371/journal.pone.0166836

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© 2016 Wang et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — (A) A 57-year-old male with mucinous adenocarcinoma in gastric antral (white arrow) and metastatic lymph nodes (30/37). Three solitary lymph nodes with fluorodeoxyglucose (¹⁸F-FDG) uptake higher than surrounding fat tissue were evaluated as MPLN (black arrows). (B) A 62-year-old male with moderately to poorly differentiated adenocarcinoma in gastric antral and metastatic LN (3/17). A prominent nodular ¹⁸F-FDG uptake spot (black arrow) was observed in the stomach wall of the primary lesion (white arrow). The same level CT cross-section image showed a soft nodule adhesion in the gastric wall, and was counted as a MPLN. (C) A 62-year-old women with poorly differentiated adenocarcinoma in gastric antral and metastatic LN (34/52). An ¹⁸F-FDG uptake spot (black arrow) was noted in the rear gastric body and identified as a LN cluster. The cluster was counted as three MPLNs (a. Positron emission tomography imaging; b. the same slice with computed tomography imaging; c. positron-emission tomography and computed tomography fusion imaging).