目的 分析多层螺旋CT在评价上腔静脉综合征侧支循环中的作用。 方法 报道2012年2月收治的1例上腔静脉综合征患者，并以多层螺旋CT评价侧支循环建立情况。 结果 通过多层螺旋CT的多维成像技术，可清楚发现患者典型的以及2支少见的侧支循环。 结论 多层螺旋CT在评价上腔静脉综合征侧支循环中有其重要意义。
Objective To explore the pathology and clinical features of bone marrow tuberculosis. Methods 30 cases of bone marrow tuberculosis diagnosed in West China Hospital between January 2004 and December 2010 were recruited in the study. Their pathology and clinical data were retrospectively analyzed. Results The majority of the patients were young and middle-aged. The ratio of male to female was 1.5∶1. Fever was the main symptom, which often accompanied by cough, sputum, fatigue, anorexia, abdominal pain, bloating and diarrhea and other symptoms. Bone marrow tuberculosis involved multiple systems, accompanied by cytopenia and pulmonary tuberculosis. The ratio of sputumsmear positive for acid-fast bacilli was low. Bone marrow biopsy mainly showed granulomatous inflammation with or without caseous necrosis. The mortality could be significantly reduced by anti-tuberculosis treatment in time. Conclusion Bone marrow tuberculosis is serious and often accompanied by multiple systems tuberculosis. Early diagnosis is particularly important. Timely and regular treatment is in great needed.