膈肌错构瘤(纤维血管脂肪瘤)

Hamartoma(Fibroangiolipoma) of the Diaphragm

目的探讨CT、MRI对原发膈肌肿瘤的诊断价值。方法总结1例经CT、MRI诊断并经手术、病理证实的右侧膈肌错构瘤。结果 CT平扫显示瘤体与膈肌脚相延续,CT增强门静脉期可见残留膈肌的密度低于肝脏。MRI化学位移正、反相位成像反映瘤内含脂肪成分,而整个瘤体于T2WI呈编织样混杂信号。结论 CT能较好显示膈肌内肿块,结合MRI显示软组织结构的优势,有助于正确诊断膈肌肿瘤.

Objective To investigate the diagnostic value of CT and MRI for primary tumors of the diaphragm. Materials and methods Summarizing one case of hamartoma of the diaphragm diagnosed by CT and MRI, and confirmed by the operation and pathology. Results Plain CT showed the continuity between the tumor and crura of the diaphragm. ,enhancement CT revealed that residual diaphragm density was lower than that of liver. The tumor contained fat composition on MRI chemical shift in-out phase,and showed a weaving hybrid signals on T2WI and T2-FatSat. Conclusion CT can well reveal mass in the diaphragm, and MRI may preferably expose constituents of the soft tissue, the both contribute to correct diagnosis of tumor of the diaphragm.