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Chinese Journal of Radiology ; (12)2001.
Article in Chinese | WPRIM | ID: wpr-679862

ABSTRACT

Objective To investigate the imaging features of sarcomatoid carcinoma(SC)of lung on chest radiography and CT and to improve knowledge of SC.Methods The chest plain films,CT images and clinical data of all 7 cases of pathologically proved lung SC were retrospectively analyzed.Results All cases presented with a spheroid solid lung mass ranged from 3 to 11 cm in diameter(average 7 cm).All the lesions were located in middle and lower fields of the lung:3 lesions in right lower lobe,2 in right middle lobe,and the other 2 in left lower lobe.Among the 7 cases:6 cases were of peripheral type and 1 case was of central type.The peripheral-typed lesions of 5 cases had clear margin and 3 of them were lobulated.Three massess were homogenous in density,and the other 4 were inhomogeneous in density with formation of central cavity or calcification.After intravenous contrast administration.Three lesions showed homogeneous enhancement,and the other 4 lesions had inhomogeneous enhancement.The lesions with diameter larger than 6 cm showed marginal or patch-like enhancement.Five cases had pleural or chest walls invasion.Two cases had mediastinal lymph nodes metastases.One case had multiple remote metastasis.Conclusion There are some relatively specific features of lung SC on chest radiography and CT,which may be helpful for diagnosis.

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