How invasive aspergillosis may have a beneficial effect after single lung transplantation.

We report the case of a 52-year-old female, who received a left single lung transplantation for end-stage smoking-induced emphysema in 1997. During the last 4 years, she experienced a progressive decline in FEV1, which we attributed to the development of bronchiolitis obliterans syndrome, stage 2. In 2007 she experienced an invasive aspergillosis of the native lung upper lobe, which resolved after 3 months of adequate treatment with voriconazole. After resolution of the infection, both FVC (forced vital capacity) and FEV1 became surprisingly better, due to fibrosis of the affected lobe, compatible with infection-induced volume reduction of the native lung.