This report details the CT and MR imaging findings of a primary orbital Ewing＇s sarcoma case involving the middle cranial fossa in a 13-year old boy. CT showed an ill-circumscribed homogeneous soft-tissue density mas...This report details the CT and MR imaging findings of a primary orbital Ewing＇s sarcoma case involving the middle cranial fossa in a 13-year old boy. CT showed an ill-circumscribed homogeneous soft-tissue density mass with needle-like bone reaction. On MRI, the mass showed homogeneous iso-intensity on T1WI, heterogeneous hyper- intensity on T2WI, and marked homogeneous enhancement. Meanwhile, the mass was hyper-intense on DWI, and ADC alue was 575x10-6 mm2/s. The mass showed as high rCBV and rCBF, prolonged MTT based on DCS- PWI, and wash-out pattern of TIC derived from the DCE-MRI. Our case suggests that functional MRI modalities, including DWI, DSC-PWI or DCE-MR, could provide additional information for differential diagnoses. Both CT and MRI should be performed and comprehensively analyzed for limiting differential diagnoses, determining lesion extension and facilitating operative approach.展开更多
Objective： To evaluate the radiological features in the cases with geriatric pulmonary tuberculosis（GPTB）. Methods： One hundred and two elderly patients with tuberculosis were studied in this paper. All patients h...Objective： To evaluate the radiological features in the cases with geriatric pulmonary tuberculosis（GPTB）. Methods： One hundred and two elderly patients with tuberculosis were studied in this paper. All patients had an examination on chest X-ray, and 63 of them had a chest scan of CT. Results： The pulmonary tuberculosis infiltration, caseous pneumonia and cavitary lesions were found in 85, 11 and 19 cases with GPTB respectively. Acute miliary tuberculosis was diagnosed in 2 cases. Pleural effusion was in 26 cases. In addition, Hilar and mediastinal lymphadenopathy was presented in the other 13 cases. Conclusion： Radiological findings of GPTB were atypical in general.展开更多
Alveolar soft part sarcoma（ASPS）of the orbit is exceedingly rare and little is known regarding its radiologic features.Here,we reviewed the CT and MRI findings of one case of ASPS of the orbit with emphasis on its s...Alveolar soft part sarcoma（ASPS）of the orbit is exceedingly rare and little is known regarding its radiologic features.Here,we reviewed the CT and MRI findings of one case of ASPS of the orbit with emphasis on its salient imaging features.展开更多
文摘This report details the CT and MR imaging findings of a primary orbital Ewing＇s sarcoma case involving the middle cranial fossa in a 13-year old boy. CT showed an ill-circumscribed homogeneous soft-tissue density mass with needle-like bone reaction. On MRI, the mass showed homogeneous iso-intensity on T1WI, heterogeneous hyper- intensity on T2WI, and marked homogeneous enhancement. Meanwhile, the mass was hyper-intense on DWI, and ADC alue was 575x10-6 mm2/s. The mass showed as high rCBV and rCBF, prolonged MTT based on DCS- PWI, and wash-out pattern of TIC derived from the DCE-MRI. Our case suggests that functional MRI modalities, including DWI, DSC-PWI or DCE-MR, could provide additional information for differential diagnoses. Both CT and MRI should be performed and comprehensively analyzed for limiting differential diagnoses, determining lesion extension and facilitating operative approach.
文摘Objective： To evaluate the radiological features in the cases with geriatric pulmonary tuberculosis（GPTB）. Methods： One hundred and two elderly patients with tuberculosis were studied in this paper. All patients had an examination on chest X-ray, and 63 of them had a chest scan of CT. Results： The pulmonary tuberculosis infiltration, caseous pneumonia and cavitary lesions were found in 85, 11 and 19 cases with GPTB respectively. Acute miliary tuberculosis was diagnosed in 2 cases. Pleural effusion was in 26 cases. In addition, Hilar and mediastinal lymphadenopathy was presented in the other 13 cases. Conclusion： Radiological findings of GPTB were atypical in general.
文摘Alveolar soft part sarcoma（ASPS）of the orbit is exceedingly rare and little is known regarding its radiologic features.Here,we reviewed the CT and MRI findings of one case of ASPS of the orbit with emphasis on its salient imaging features.
