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目的总结原发性胸骨肿瘤的影像学特点,探讨其影像学诊断价值。方法回顾性分析经组织病理证实的23例原发性胸骨肿瘤患者X线胸片、CT及MRI影像资料,其中17例行CT检查,5例行MRI检查,1例行X线胸片+CT检查。结果 1例X线胸片与CT均表现为骨性突起,与术后组织病理相符;17例行CT检查者表现为膨胀性溶骨性骨质破坏12例,混合性骨质破坏4例,骨性突起1例;其中软组织肿块9例,与组织病理相符14例;MRI表现为膨胀性溶骨性骨质破坏4例,混合性骨质破坏1例,软组织肿块2例,与术后组织病理相符2例。结论膨胀性溶骨性骨质破坏为原发性胸骨肿瘤主要影像学特征,影像学检查用于胸骨肿瘤术前诊断有较高价值。
Objective To summarize the imaging features of primary sternal tumors and discuss the diagnostic value of imaging. Methods The data of X-ray, CT and MRI in 23 patients with primary sternum tumor confirmed by histopathology were retrospectively analyzed. Among them, 17 were examined by CT, 5 by MRI, and 1 by X-ray and CT an examination. Results One case of X-ray and CT showed bony protrusion, which was consistent with histopathology. Twelve patients underwent CT scan with expansive osteolytic bone destruction in 12 cases, mixed bone destruction in 4 cases, 1 case of bony protrusion, including 9 cases of soft tissue mass, which was consistent with histopathology in 14 cases. MRI showed 4 cases of expansive osteolytic bone destruction, 1 case of mixed bone destruction, 2 cases of soft tissue mass, Pathological coincidence in 2 cases. Conclusions Expansive osteolytic osteolysis is the main imaging characteristic of primary sternal tumors. Imaging examination is of great value in the preoperative diagnosis of sternal tumors.