Fungus ball; Mycetoma; Aspergilloma
People who have had related lung infections or who have weakened immune systems should try to avoid environments where the aspergillus fungus is found.
Patterson TF. Aspergillus species. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 6th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2005: chap 256.