CONCLUSION
LMCAAs can arise due to a variety of factors, the specific underlying cause in the present patient is most likely atherosclerosis. Treatment options typically encompass anticoagulation to mitigate the risks associated with thrombus formation, and surgical intervention is often the preferred approach. However, in the case of ACS, PCI becomes a viable choice if emergency bypass grafting is not feasible. Nevertheless, if the LM is implicated, a hybrid approach may be considered, especially if all vessels are unable to receive a bypass graft.