conidiophore. A. fumigatus is the most common cause of<unk> .<unk>  is an infection caused by fungi from the genus Aspergillus. The vast majority of cases are caused by Aspergillus fumigatus—a filamentous fungus found ubiquitously on every continent including Antarctica. Other species of Aspergillus include A. flavus and A. terreus. The major risk factors for<unk>  are previous cavity formation from other respiratory conditions. Examples include collapsed lungs which have formed bullae,<unk>  obstructive lung disease, lung cancer, and fibrocavitary sarcoidosis. Another risk factor is immunosuppression; most commonly, this includes allogeneic stem cell transplantation, prolonged neutropaenia, immunosuppressive drug therapy,<unk>  granulomatous disease and haematological malignancies. Certain demographics are also at higher risk, including the elderly, male gender and those with a low body mass index. There appears to be increasing evidence for complex genetic factors increasing the risk of developing<unk> , such as defects to toll-like receptor (TLR) 4, IL1 and IL15, TLR3, TLR10, TREM1, VEGFA, DENND1B, and PLAT.
Chronic pulmonary aspergillosis
Lung cancer
Tuberculosis
Allergic bronchopulmonary aspergillosis
Miliary tuberculosis
Primary inoculation tuberculosis
Primary pulmonary coccidioidomycosis
Extrapulmonary tuberculosis