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Objective To make a further understanding of the CT features of intraorbital meningioma,and to improve the level of CT diagnosis. Methods The imaging data of CT and clinical information of 17 cases with operatively and pathologically proved intraorbital meningioma(primary or secondary) from October 1997 to October 2006 in our hospital were retrospectively analysed.Results There were 11 optic nerve sheath meningiomas,4 orbital bone meningiomas and 2 sphenoid ridge meningiomas.On contrast-enhanced CT scan,most of the cases displayed an even enhancement.The "orbit sign""sleeve sign" and the hyperostosis of orbital bone were characteristic features of intraorbital meningioma.Conclusion CT examination plays an important role in diagnosing intraorbital meningioma.
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Objective To analyze features and diagnostic value of imageology of the early peripheral lung carcinoma.Methods The dynamic changes of early peripheral lung carcinoma confirmed pathologically in 21 cases were retrospectively analysed.The imaging features in combination with pathological data were also analysed.Results All of 21 cases,16 cases were the tubercle type(76.1%),3 cases were the spot type(14.3%) and 2 cases were the vacuole type(9.6%).Conclusion The typical imaging features of early peripheral lung carcinoma are few,the dynamic observation of the disease is of relatively high value in diagnosis.
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Objective To investigate the CT manifestations of hepatocellular adenoma,and improve the CT diagnostic accuracy of the disease.Methods CT manifestations of 10 cases with hepatocellular adenoma proved by pathology were analyzed retrospectively.Results On plain CT scan,the lesions were isodensity or slight hypodensity in 10 cases,which was hardly distinguished from the normal tissue.In all 10 cases,the lesions showed marked enhancement in the arterial phase.the mean CT value of hepatocellular adenoma in the arterial phase was much higher than that in portal venous and delay phase.Conclusion CT scan is helpful for the diagnosis of hepatocellular adenoma.
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Objective To discuss CT,X-ray and sonographic features of atypical kidney cyst.Methods CT,X-ray and sonographic findings in 9 cases with pathologically-proved atypical kidney cyst were retrospectively analyzed.Results CT and sonography could diagnose atipical kidney cyst with a high accuracy.Of 9 cases,bloody kidney cyst 3 cases,calcified kidney cyst 2 cases,separate kidney cyst 3 cases.Renal milk of calcium kidney cyst 1 case.CT and ultrasound can display the forms and features of atypical kidney cyst.Conclusion CT and sonography are of great value for the diagnosis of atypical kidney cyst.It is difficult in differentiating the bloody kidney cyst and renal carcinoma with muddy cystic content.Ultrasound guided puncturing biopsy sould be carried out.