Case report
Figure 1. A shows an elongated cylindrical piece of tissue shown upon aspirating the sheath; B shows that on histopathology, this tissue was confirmed as arterial endothelium
A 62-year-old woman was admitted with troponin positive acute coronary syndrome and was transferred to our centre for intervention. She underwent PCI via the right radial artery (RA). The RA was easily cannulated and a guide-wire passed. Due to resistance, a short non-hydrophilic introducer sheath could not be advanced and was changed to a long hydrophilic-coated sheath, which was introduced without difficulty. Aspirating the sheath showed an elongated cylind