From the case: Paradoxical subfalcine brain herniation
Axial CT baseline post craniectomy
two days later at the level of septum pellucidum depicts natural evolution of right MCA infarction with extensive edema and haemorrhagic transformation of different age (red arrows). Resolving subfalcine herniation and interval development of transcalvarial herniation of major parts of the right infarcted hemisphere through newly right-sided frontoparietotemporal hemicraniectomy with scant subcutaneous blood products is also illustrated (yellow arrows). Note demarcating lacunar infarction in left hemithalamus (white arrow), consistent with compression of thalamoperforating arteries from left PCA by brain herniation seen two days before.