Title: Left Ventricular Outflow Tract Lesion in a Patient with Rheumatic Valvular Disease: MacCallum Plaque?Running title: LVOT Lesion in Rheumatic Disease: A MacCallum Plaque?Maria Gabriela Matta1, Ahmed Reza1, Bradley Hefford1, Atifur Rahman1.1 Department of Cardiology, Division of Specialist Medical Services, Gold Coast Hospital and Health Services, Southport, QLD 4215, Australia.Maria Gabriela Matta ORCID: https://orcid.org/0000-0002-9651-1109Corresponding Author : María Gabriela Matta1 Hospital Blvd, Southport QLD 4215. Australia. email: magabrielama@gmail.comData Availability Statement: The data supporting this case are available upon request from the corresponding author.Funding Statement: No funding was received for this case.Conflict of Interest Disclosure: The author declares no conflicts of interest.Ethics Approval Statement: This is a case image, and ethical approval was not required.Patient Consent Statement: Patient data was anonymised and consent was obtained forthe use of the case report, ensuring confidentiality and compliance with ethical standards.Permission to Reproduce Material from Other Sources: No material from other sources was used in this case.Clinical Trial Registration: NA