Kurashima Atsuyuki
Fukujuji Hospital, Tokyo, Japan.
Kekkaku. 2009 Aug;84(8):577-83.
Almost all nontuberculous mycobacteria (NTM) cause opportunistic infection. Therefore, the radiographic findings of NTM have a tendency of nonspecific patterns modifying the predisposing conditions or diseases and we could not extract species specific radiographic characterizations in that situations. In this review, the NTM cases without predisposing conditions or diseases are submitted essentially. Mycobacterium kansasii cases show more or less the same patterns with TB cases. Mycobacterium fortuitum case shows nonspecific consolidations. Mycobacterium xenopi case shows solitary cavity in the upper lobe area. Mycobacterium gordonae case shows the same cavitary pattern. Mycobacterium abscessus case shows widely scattered tree-in-bud appearance foci. Weak virulence NTM like as Mycobacterium xenopi or Mycobacterium gordonae may form solitary cavity without predisposing conditions. The pattern of bronchial wall thickening seems to be one of the specific findings with NTM pulmonary infection.
几乎所有非结核分枝杆菌(NTM)都会引起机会性感染。因此,NTM的影像学表现往往呈现非特异性模式,会因易患因素或疾病而改变,在这种情况下我们无法提取出特定菌种的影像学特征。在本综述中,主要提交了无易患因素或疾病的NTM病例。堪萨斯分枝杆菌病例的表现与结核病病例或多或少相似。偶然分枝杆菌病例表现为非特异性实变。蟾分枝杆菌病例表现为上叶区域的孤立空洞。戈登分枝杆菌病例表现出相同的空洞模式。脓肿分枝杆菌病例表现为广泛散在的树芽征病灶。像蟾分枝杆菌或戈登分枝杆菌这样毒力较弱的NTM可能在无易患因素的情况下形成孤立空洞。支气管壁增厚的模式似乎是NTM肺部感染的特异性表现之一。