Rasamsonia argillacea brain abscess in a lung transplant recipient: an unexpected infection by an unusual fungal pathogen.

Fungal infections are an important cause of morbidity and mortality after lung transplantation. While Aspergillus sp. is the most common implicated organism, rare and emerging molds are increasingly reported. We report a case of Rasamsonia argillacea (formerly Geosmithia argillacea) brain abscess in a lung transplant recipient and highlight the unique characteristics associated with this unusual pathogen.