Pseudo - Subarachnoid Hemorrhage : Diagnostic Challenges and Clinical Implications

Abstract

Pseudo-subarachnoid hemorrhage (pseudo-SAH) is a radiologic phenomenon where imaging characteristics mimic those of true subarachnoid hemorrhage (SAH), despite the absence of actual hemorrhage. This paper aims to elucidate the underlying mechanisms, diagnostic challenges, and clinical implications of pseudo-SAH, with a particular focus on differentiating it from true SAH using imaging modalities and clinical context.