Dr Davis collected the patient data, conducted the literature review, drafted the initial manuscript, and edited the manuscript according to feedback of the other authors; Dr Ziegler conceptualized and designed the project, provided feedback, and reviewed and revised the manuscript; Ms Doyle created the histopathology fi gures and legends and critically reviewed the manuscript; Ms Tobias analyzed and reported on the original slides, approved the histopathology fi gures and legends, and critically reviewed the manuscript; Dr Ellison reviewed the histopathology to assist with confi rmation of the diagnosis, undertook molecular analysis of the tumour, and revised the manuscript; and all authors approved the fi nal manuscript as submitted.