SUPPURATIVE PNEUMONIA (ASPIRATION PNEUMONIA) AND PNEUMONIA IN IMMUNOCOMPROMOISED PATIENTS SUPPURATIVE PNEUMONIA Definition: "Suppurative pneumonia is characterized by destruction of the lung parenchyma by inflammatory process and although microabscessation formation is characteristic histological feature, pulmonary abscess" is usually taken to refer lesion which is a large, localized collection of pus or a cavity lined by chronic inflammatory tissue from which pus has escaped by rupture into bronchus". Etiology: Inhalation of septic material during operations on the nose, mouth, throat under general anesthesia Bulbar Vocal cord palsy Esophageal reflux Alcoholism Infecting Organism: Bacterioder melaninogenicus Anaerobic/microaerophilic cocci B. fragilis S. aureus (most common) K.pneumoniae S.pneumonia. *Leimerres Syndrome is a rare cause of pulmonary abscesses. Usually, causative agent is F.secrophorum . Illness signs include sore throat, painful swollen neck, fever, ri