CT Diagnosis of Pulmonary Blastoma / 实用放射学杂志

ABSTRACT

Objective To evaluate the efficacy of CT in diagnosis of pulmonary blastoma (PB).Methods 10 patients with surgically and pathologically proved PB were collected in this study,and CT findings of the tumors were retrospectively analyzed. Results Of 10 cases,1 were central form (the tumors localized under pleura) and 9 was periphery form.The tumors were localized at right lobus in 6( including upper lobus,middle and lower lobus in 1,1 and 4,respectively) and left lobus in 4(upper lobus in 3 and lower lobus in one).The lesions were more than 3 cm in diameters in all cases.Necrosis of tumors were seen in 7 cases.The lesions had obvious enhancement after intravenous injection of contrast medium.Enlarged lymph nodes were identified at hilum of the lung and mediastinum in one,bony destruction and distant metastases were seen in one and 2,respectively.Conclusion PB is not of characteristic CT features,CT-guided percutaneous needle biopsy and the immunohistochemical method are helpful to the diagnosis of pulmonary blastoma.