Case Presentation: A 71-year-old female patient with a medical history of coronary artery disease (CAD), hypertension (HTN), and mixed hyperlipidemia presented to our medical facility, reporting chest pain. She underwent a left heart catheterization, revealing significant stenosis in the proximal right coronary artery (RCA), which was successfully treated with percutaneous transluminal coronary angioplasty (PTCA) and [...]