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Lung abscess is a type of liquefactive necrosis of the lung tissue and formation of cavities (more than 2 cm) containing necrotic debris or fluid caused by microbial infection. This pus-filled cavity is often caused by aspiration, which may occur during altered consciousness. Alcoholism is the most common condition predisposing to lung abscesses. Lung abscess is considered primary (60%) when it results from existing lung parenchymal process and is termed secondary when it complicates another process e.g. vascular emboli or follows rupture of extrapulmonary abscess into lung. == Signs and symptoms == Onset of symptoms is often gradual, but in necrotizing staphylococcal or gram-negative bacillary pneumonias patients can be acutely ill. Cough, fever with shivering, and night sweats are often present. Cough can be productive of foul smelling purulent mucus (≈70%) or less frequently with blood in one third cases). Affected individuals may also complain of chest pain, shortness of breath, lethargy and other features of chronic illness. Those with a lung abscess are generally cachectic at presentation. Finger clubbing is present in one third of patients.〔 Dental decay is common especially in alcoholics and children. On examination of chest there will be features of consolidation such as localized dullness on percussion and bronchial breath sounds. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lung abscess」の詳細全文を読む スポンサード リンク
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