Case 85. Reference case 85C

　 　 　 　
　 Allergic bronchopulmonary aspergillosis, showing short Aspergillus hyphae phagocytized by macrophages in the bronchial wall (Grocott). 　
　 　 　 　

　

 　 Infection of hyphae-forming fungi is commonly protected by neutrophils, and usually does not provoke granulomatous reaction. In general, risk of opportunistic infection increases in a neutropenic state. This makes a well contrast to the yeast-form fungi.