在全世界,肺结核仍是发病率和死亡率最高的病种之一。在该病的复活中,儿童的高危组之一。作者对确诊为肺结核的连续41例儿童的CT、胸片及病史进行厂回顾性分析,以明确儿童肺结核的CT检查指征、表现及应用价值。全部病例常规行增强检查,为5～10mm层厚连续扫描。CT检查中,34例显示纵隔和肺门淋巴结增大,其中29例增大淋巴结呈环状强化伴中心低密度灶,余5例增大的淋巴结内可 Tuberculosis is still one of the highest morbidity and mortality worldwide in the world. One of the high-risk children in the resurgence of the disease. The authors performed a retrospective analysis of CT, chest radiography and medical history of 41 consecutive children diagnosed with pulmonary tuberculosis to clarify the indications, performance and value of CT examination of children with tuberculosis. Routine enhanced examination of all cases routine for 5 ~ 10mm layer thickness continuous scan. CT examination, 34 cases showed increased mediastinal and hilar lymph nodes, of which 29 cases of enlarged lymph nodes were ring-shaped lesions with low density center, the remaining 5 cases of increased lymph node