Silent Inflammation: A Case of Blurry Vision Raising Diagnostic Challenges in an Elderly Patient.

Giant cell arteritis (GCA) is a large vessel vasculitis with cranial and extracranial vessel involvement. Clinicians suspect GCA when a patient exhibits symptoms or exam findings of temporal headache with sudden vision loss, jaw or tongue claudication, scalp tenderness, abnormal temporal artery exam, and diagnostic findings, including elevated inflammatory markers. We present a case, which highlights that, despite established diagnostic measures, challenges persist. The unexpected presentation serves as a valuable reminder of the condition's diverse manifestations.