Summary

Nocardia otitidis-cavarium is rarely isolated as an infectious pathogen in the western world. We report on a 71-year-old Caucasian man with membranous glomerulonephritis who presented with several seemingly unrelated clinical symptoms that, after laborious diagnostics, turned out to be caused by disseminated infection with N. otitidis-cavarium. This case highlights the variable clinical presentations that can occur in nocardial infections and underscores the need to search for rare pathogens in patients taking immunosuppressive medication.