;Conditions contributing to lung abscess * Aspiration of oropharyngeal or gastric secretion * Septic emboli * Necrotizing<unk>  * Vasculitis: Granulomatosis with polyangiitis * Necrotizing tumors: 8% to 18% are due to neoplasms across all age groups, higher in older people; primary squamous carcinoma of the lung is the most common. ;Organisms In the post-antibiotic era pattern of frequency is changing. In older studies anaerobes were found in up to 90% cases but they are much less frequent now. * Anaerobic bacteria: Actinomyces, Peptostreptococcus, Bacteroides, Fusobacterium species, * Microaerophilic streptococcus : Streptococcus milleri * Aerobic bacteria: Staphylococcus, Klebsiella, Haemophilus, Pseudomonas, Nocardia, Escherichia coli, Streptococcus, Mycobacterium * * Fungi: Candida, Aspergillus * Parasites: Entamoeba histolytica
complications of Aspiration pneumonia
complications of Bronchiolitis
complications of Air embolism
complications of Pharyngitis
complications of Pulmonary embolism
symptoms of Aspiration pneumonia
complications of Tonsillitis
medical cause of Chylothorax