Fig. 2 Horizontally cut right parahippocampal gyrus of an 85‑year‑old female with aneurysm of the right medial cerebral artery. a 7 T scan of the formalin‑fixed brain. b Macroscopic overview of a gallocyanin‑stained 420‑μm‑thick celloidin section through the corresponding region as depicted in a . c Microscopic photograph of the region indicated by the arrow in b with the majority of neurons unimpaired even when close to the fountain‑like streak of hemosiderin emerging from the caudo‑lateral extreme of the aneurysm. Scalebar in b