Aspergilloma

· Caused by Aspergillus fumigatus-soil fungus

· Non-invasive Aspergillosis

· Colonization of pre-existing cavity

· Most frequently TB cavity of Sarcoid

· Also can occur with cavitary ca, and bronchiectasis

· Most common symptom is hemoptysis

· Histologically, these are intertwined hyphae of the aspergillus forming a mycetoma

· Findings:

o Solid, round mass in thin-walled cavity

o Usually in upper lobes

o Moves with changes in positioning

o Crescent-shaped airspace separates the fungus ball from the wall of cavity

o Fungus ball may calcify