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. 2021 Apr 21;39(8):741–748. doi: 10.1007/s11604-021-01121-9

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — A 64-year-old woman with non-functioning pituitary adenoma. The tumour was isointense to the brain on unenhanced T1 weighted imaging (a); moreover, it was strongly contrasted in the early phase (b) while the contrast effect was prolonged in the delayed phase (c). The WR was relatively low (2.2%), EER was relatively high (145.5%), and DER was relatively high (142.2%), which is a common pattern in non-GH adenomas