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. 2025 Sep 8;16:1546919. doi: 10.3389/fendo.2025.1546919

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Copyright © 2025 Yu, Gu, Hu and Yang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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A series of brain scans labeled A–H. Panel A is a CT scan showing a slightly hyperdense lesion. Panels B, C, D, E, F, and H are brain MRIs in different sequences that do not clearly demonstrate the lesion. Panel G is an MR angiogram displaying the cerebral vasculature. Each scan provides a different perspective on the characteristics of the lesion. — Case 6. (A) Brain CT revealed a slightly higher density in the right putamen. Brain MR T1 image (B) and T2 image (C) demonstrated no significant abnormal signals. On the adjacent slice, the right putamen showed a slightly hyperintense signal with a central hypointense signal on the T1 sequence (D), and a slightly hyperintense punctate signal on both the T2 (E) and DWI (F) sequences. (G) Brain MRA indicated moderate-severe stenosis of bilateral MCA and multiple intracranial vascular stenosis. (H) The SWI sequence showed scattered asymmetric slightly low signals in the bilateral basal ganglia.