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Objective To investigate CT findings of abnormal bronchovascular bundle in patients with peripheral small cell lung cancer (SCLC).Methods The CT findings of abnormal bronchovascular bundle in 78 peripheral SCLC patients confirmed by pathology were retrospectively reviewed.Abnormal bronchovascular bundle of peripheral SCLC was divided into three types:type Ⅰ (thickening of the bronchovascular bundle),type Ⅱ (string beads of bronchovascular bundle) and type Ⅲ (bronchial cast with bronchus cut-off).Results 41 of 78 patients had abnormal bronchovascular bundle,in which 26 cases were in type Ⅰ,10 in type Ⅱ,5 in type Ⅲ.Except for 1 case with no mediastinal lymph node metastasis among 41 cases with abnormal bronchovascular bundle,all other 40 cases had mediastinal lymph node metastasis.Conclusion The abnormal bronchovascular bundle could reflect the biologic character of SCLC.Abnormal bronchovascular bundle is associated with advanced patients.
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Small cell lung cancer is the most common primary neuroendocrine malignancy of the lung and is characterized by high malignant degree,rapid doubling time,easy metastasis in early stage and poor prognosis.Accurate staging of small cell lung cancer can formulate personalized therapeutic plans and improve the prognosis of patients.PET/CT can obtain metabolism and anatomical images of the whole body in one scan and improve the diagnostic accuracy and integrity.PET/CT has been widely applied to clinical practice now.PET/CT will play a more and more important role in diagnosis,staging,treatment and prognosis assessment of patients with small cell lung cancer.The value of PET/CT in staging and treatment of small cell lung cancer was reviewed in this article.
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Objective To investigate CT signs of peripheral small cell lung cancer (SCLC).Methods The CT signs of 78 patients with SCLC confirmed by pathology were retrospectively reviewed.According to the presence of mediastinal lymph node metastasis and its size, 78 cases of peripheral SCLC were divided into two types: typeⅠ(isolated lesion) and typeⅡ(lung lesion + lymph nodes).Type Ⅱwere divided into two subtypes:type Ⅱa (short diameter of lymph nodes of pulmonary hilar and mediastinum less than 10 mm) and type Ⅱ b (short diameter of lymph nodes of pulmonary hilar and mediastinum greater than or equal to 10 mm).Results Of the 78 SCLCs, typeⅠwas 7 cases, and typeⅡwas 71 cases,including 8 cases of typeⅡa and 63 cases of typeⅡb.All of the lesions were soild density.The shape were round or oval in 52 cases, vermicular or spindlein 9 cases, and other shapes in 17 cases.Among 71 cases performed CT enhancement, there were 9 cases with homogeneous enhancement, 58 cases with heterogeneous enhancement, 4 cases with non-enhancement large necrosis area.These cases showed the following CT signs: smooth edge in 65 cases, coarse edge in 12 cases, blurred edge in 1 case;air bronchogram in 3 cases, vacuole sign in 4 cases, calcification in 4 cases;lobulation sign in 46 cases, spiculated sign in 5 cases;thickening of the bronchovascular bundle in 41 cases, pleural indentation in 6 cases, marginal ground-glass opacity in 5 cases, vascular convergence sign in 1 case;emphysema in 42 cases;obstructive pneumonia in 4 cases;bronchus abruptly interruption on the edge of the nodules in 18 cases;enlargement of mediastinal lymph nodes in 63 cases, the diameter of mediastinal lymph nodes larger than the primary lesions in 42 cases;and a little pleural effusion in 9 cases.Conclusion Solid density, smooth margin with lobulation,and significantly enlarged mediastinal lymph nodes are common signs in peripheral SCLC.Thickening of the bronchovascular bundle indicates reletively advanced stage.
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Purpose To explore the multislice spiral CT (MSCT) features of renal chromophobe carcinoma, and to improve the understanding and diagnosis of the disease. Materials and Methods MSCT features of 17 patients with renal chromophobe carcinoma confirmed by surgical pathology were retrospectively analyzed, plain MSCT and multi-phase dynamic contrast-enhanced scan were applied to these patients. Results Single substantive round or oval-shaped soft tissue mass was demonstrated in 17 cases. The lesions were all uniform density on plain MSCT, and mild to moderate homogeneous enhancement in 11 cases on enhanced MSCT, including 9 cases with significant enhancement above the renal medulla and below the renal cortex, and 2 cases with similar enhancement to renal medulla in corticomedullary phase. On nephrographic phase the lesion showed significant lower density than renal medulla. Heterogeneous enhancement presented in 6 cased, including 1 case with small necrosis and 1 case with stellate scar lesion in low-density. Conclusion Renal chromophobe carcinoma demonstrates a round solid mass of uniform density on plain MSCT, and mild to moderate homogeneous and heterogeneous, which can provide the reference value for preoperative diagnosis.
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Objective To investigate imaging findings of lung injury after seawater drowning.Methods The imaging data in 12 cases with seawater drowning treated in our hospital in the past 8 years were analyzed retrospectively.Results After 2 to 12 hours of leaving the water,the initial chest X-ray examinations or CT scans were taken.The initial X-ray films displayed the lung markings increase,the small patch shadows or wide distribution patch shadows.CT showd large ground-glass density,diffuse patchy or flocculus shadows and different degress of emphysema in bilateral lung.Most of the foci were absorbed obviously in 1 to 3 days.In 1 case,the focus formed pulmonary abscess later.Conclusion X-ray and CT examinations can clearly show the severity and changes of lung damage in seawater submersion victims,and that can provide important informations for clinical diagnosis and treatment.
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OBJECTIVE:To review drug use in the pediatric outpatient department of our hospital.METHODS:1000pediatric prescriptions during Aug.1to Aug.20,2004and another1000during Aug.1to Aug.20,2005were collected from the pediatric outpatient department of our hospital,and which were subjected to statistical analysis using international indicators of rational drug use and DDDs.RESULTS:The usage of injection accounted for12.3%in2004and11.4%in2005.The usage of anti-infectives stood at84.20%in2005,accounting for46.11%of total drug consumption sum.Azithromycin and cefaclor respectively dominated the first place on the lists of consumption sum and DDDs.CONCLUSION:The practice of Prescription Management Rules(trial)helps improving the use of injections in the pediatric outpatient department of our hospital.However,there are still many problems,which needs to be tackled in the application of anti-infectives and further intervention measures needs to be taken.