Ethical Statement:
The case presented here was seen in our institute (University Health Network, University of Toronto) in consultation with another institute where the patient had originally been seen and treated. We believe that it would potentially be difficult to find the appropriate clinical team in the outside hospital to obtain consent from the patient. We completely understand that having consent from all the patients who are participating in any sort of studies is critical; however, in this case, we only present a few histological and immunological images with a brief description of the pathology with no reference to any information from the patient from whom the pathology specimen was obtained. This report, nonetheless, has been performed according to the declaration of Helsinki.