Time course of the patient's presentation. Shown are major clinical events in the patient's clinical course both before and after he presented to our hospital. Timeline is not to scale. NHL, non-Hodgkin lymphoma; HSCT, hematopoietic stem cell transplant; OSH, outside hospital; PLEX, plasma exchange/plasmapheresis; LFTs, liver function tests; CSF, cerebrospinal fluid; IFA, indirect immunofluorescence antibody testing.