Balloon wrapping is a new phenomenon that has been described with the introduction of balloon‐on‐a‐wire devices. The ACETM balloon catheter is one such second‐generation device. There have been no reports of balloon wrapping or twisting with this fixed wire catheter. This article describes a patient who developed balloon wrapping in the course of percutaneous transluminal coronary angioplasty through a 5.2Fr Cordis diagnostic catheter, during multilesion dilatation in a small and tortuous left anterior descending coronary artery. The causative mechanisms, as well as alternative approaches for dealing with such a similar scenario in future are discussed. (J Interven Cardiol 1996;