Background. Surgical resection is widely accepted as the treatment of choice for pulmonary aspergilloma (PA). However, the technique involved ranks among the most challenging in thoracic surgery and remains associated with considerable morbidity and mortality. To improve the outcomes, it is essential to establish clear recommendations for optimal timing of surgery and selection of patients. To facilitate this, we analyzed the impact of preoperative clinical factors on the results of treatment. Methods. Medical records of patients treated surgically for PA between 1979 and 2007 were retrospectively reviewed for clinical variables of potential impact on the surgical outcome with emphasis on preoperative symptoms. Results. Sixty-four patients, including 22 cases of simple aspergilloma and 42 cases of complex aspergilloma were enrolled in the study. Univariable analysis followed by multivariable logistic regression identified weight loss and massive hemoptysis as risk factors for postoperative morbidity = odds ratio (OR) = 8.856, P = 0.006 and OR = 6.9, P = 0.021, respectively]. Tenyear cumulative survival in simple aspergilloma and complex aspergilloma was 88.3% and 70.6%, respectively (P = 0.042). Multivariable analysis by Cox proportional hazard model showed that younger age and lack of massive hemoptysis were independent favorable prognostic factors = hazard ratio (HR) = 1.13, P = 0.0004 and HR = 4.71, P = 0.0319, respectively) Conclusion. Massive hemoptysis is an independent unfavorable predictive and prognostic factor in the surgical treatment of PA. We believe that in operable cases, early surgical resection may be recommended even in asymptomatic patients. This strategy may prevent development of life-threatening symptoms and offers a realistic chance of permanent cure with acceptable mortality and morbidity. (C) 2010 Elsevier Inc. All rights reserved.