MSCT Imaging Findings in Anterior Mediastinal Primary Malignant Tumors / 实用医学杂志

ABSTRACT

Objective To investigate the MSCT imaging of anterior mediastinal primary malignant tumors , and to improve the accuracy of diagnosis. Methods The imaging and clinical data of forty-five patients with anterior mediastinal primary malignant tumors were retrospectively analyzed. Results Among all forty-five cases, there were seventeen thymic carcinomas , and cystic and necrotic earas were seen in all cases. Fourteen were malignant lymphomas with a single irregular soft tissue mass or multiple merged nodules. There were enlarge lymph nodes around the tumors and (or) in other parts of the body. Twelve cases were malignant germinomas, the levels of rinary human chorionic gonadotropin (HCG) or blood armour fetuin (AFP) were abnormal in ten cases, and calcifications were seen in four cases and fat composition was observed in three cases. One malignant solitary fibrous tumor was observed on the left side of the anterior-superior mediastinum with cystic degeneration and necrosis. One was neuroendocrine carcinoma with clear boundary , cystic degeneration and necrosis , after enhanced scanning , it showed ring-shaped reinforcement. Conclusion Anterior mediastinal primary malignant tumors have certain characteristics of MSCT findings , in combination with clinical information , which can help the diagnosis and efficacy evaluation.