Objective to investigate the characteristics of ultrasonography of atypical ectopic pregnancy and to improve the accuracy rate of the localization and characteristic diagnostication.
目的探讨非典型异位妊娠的声像图特点，以提高超声对非典型异位妊娠定性及定位的准确率。
Conclusion the atypical symptoms and focus, indefinite locations and easy aggravating properties are the characteristics of pulmonary tuberculosis in senility.
结论老年肺结核具有症状不典型、病变不典型、病灶部位不固定、病变容易恶化等特点。
Objective: To discuss the atypical CT imaging characteristics of acute epidural hematoma and subdural hematoma in head injuries.
前言： 目的探讨颅脑损伤不典型急性硬膜外与硬膜下血肿的CT影像学特征及鉴别要点。
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