Angioedema due to angiotensin-converting enzyme inhibitor use: Radiographic findings in 3 patients

Angioedema of the oropharynx and hypopharynx due to oral angiotensin-converting enzyme (ACE) inhibitors is a potentially life-threatening event and has not been well described in the radiology literature. A retrospective review of the clinical and radiologic findings in three patients with angioedema due to ACE inhibitor use was performed.Our subgroup of patients treated with ACE inhibitors presented with varying degrees of dysphagia, dyspnea, and facial swelling. Plain radiographic findings included enlargement of the epiglottis, aryepiglottic folds, and prevertebral and submental soft tissue. Computed tomography confirmed extensive retropharyngeal and subcutaneous edema. Clinical symptoms resolved in each case in 24–48 hours with cessation of the ACE inhibitor and concomitant steriod therapy.Our cases demonstrate the typical clinical and radiographic presentation of neck angioedema in the setting of ACE inhibitor use. As ACE inhibitors are increasingly being used as first-line agents in the treatment of hypertension, we caution that neck angioedema may be encountered with increased frequency in adults. Early recognition and immediate intervention result in rapid resolution of this potentially life-threatening event.     

Case report: CT of a duodenal paraganglioma

Paraganglioma is a neoplasm of neuroectodermal origin that occurs rarely in the bowel. This case report illustrates the previously undescribed CT appearance of a duodenal paraganglioma. An intensely enhancing mass in the region of the pancreatic head was found. The intense enhancement ruled out adenocarcinoma and focal pancreatitis. An islet cell tumor of the pancreas was the major differential diagnostic consideration.     

Bilateral aberrant cervical internal carotid arteries

Summary A patient with symptomatic bilateral aberrant cervical internal carotid arteries, demonstrated on CT and MRI, is described.     

Gliomatosis cerebri: a case report with autopsy correlation

Summary MRI-autopsy correlation in a case of gliomatosis cerebri suggests that poor gray-white matter demarcation on MRI may be sign of neoplastic infiltration. The extent of infiltration is imperfectly assessed by current imaging modalities.     

缺血性脑卒中急性期TCD,EEG,BEAM,CT的对比研究

目的 :对缺血性脑卒中急性期TCD动态观察 ,并与EEG ,BEAM ,CT等进行对比研究 ,以探讨TCD对缺血性脑卒中早期诊断、病情判断、治疗指导的价值 .方法 :发病 2 4h内首次发病的单侧MCA供血区缺血性脑卒中患者 2 3例 ,于入院即刻进行神经功能缺损评分及床旁TCD检查 ,在第 2 ,4 ,7d进行复查 ,入院当天进行EEG ,BEAM及CT检查 .门诊健康体检者 30人为对照组 .结果 :入院当天TCD异常率高于EEG ,BEAM及CT .入院当天病侧MCAVm降低 ,病侧ACAVm升高 ,分别与自身健侧及对照组比较差异有显著性(P <0 0 1) .MCA流速不对称指数 (AI)与神经功能缺损评分成正相关 (P <0 0 1) ,与BEAM慢波相对功率值成正相关 (P <0 0 5 ) ,与α波相对功率值成负相关 (P <0 0 1) .动态观察病侧MCAVm逐渐恢复并出现流速增高 ,而病侧ACAVm随之下降 .结论 :在缺血性脑卒中急性期TCD异常率高于BEAM ,EEG及CT ,异常程度与病情严重程度相关 ,动态观察可发现血管再通情况 ,具有较高的早期诊断、病情判断及治疗指导价值     

Mesenteric cyst with milk of calcium

A mesenteric cyst with milk of calcium in an adult patient is presented. Preoperative evaluation included plain film, ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI). To our knowledge, the presence of milk of calcium in a mesenteric cyst has not been previously described.     

CR临床应用的几点体会

众所周知，CR是将透过人体的X线影像信息记录于影像板(image plate，IP)而不是记录在胶片上。记录在IP上的影像信息要经过读取处理和显示等步骤才能显示数字化图像。CR的设备，除X线机以外，主要有IP影像读取装置，影像存储和显示装置，以及控制用的计算机。     

Infantile fibrosarcoma: radiological and clinical features

Two cases of infantile fibrosarcoma are described. This rare childhood malignancy of mesodermal origin usually affects the lower limbs, as it did in both of our cases. Previously, the only treatment option available involved some form of radical and often mutilating surgery. More recently, combination chemotherapy has given good results, with the effect that various imaging modalities have become important in assessing both the initial extent of disease and the response to treatment. Computed tomography has the advantage of demonstrating the amount of osseous involvement, but at the expense of a considerable dose of ionizing radiation. On the other hand, magnetic resonance imaging, with its multiplanar capacity, gives superior demonstration of breaching of tissue planes, which has important implications for planning of surgery. However, as in other soft tissue tumours, changes in signal characteristics with treatment have proved less specific than was originally anticipated.     

足月新生儿缺氧缺血性脑病的CT临床应用与预后评估

目的:提高对足月新生儿窒息缺氧缺血性脑病(简称HIE)头颅CT的临床应用。方法:时80例有明确围产期窒息史和临床症状的患儿进行头颅CT扫描,其中72例进行复查扫描。作治疗前后CT对照并分析预后。结果:80例均有按CT诊断分度标准的轻(33例、占41.2％)、中(28例、占35.0％)、重度(19例、占23.8％)。CT表现,CT诊断阳性率为100％。结论:头颅CT检查能早期、直观、清楚地对足月新生儿窒息反映出脑缺氧缺血性损害及程度和变化。对指导治疗。评估预后有重要意义。