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嗅神经母细胞瘤为一种罕见的恶性肿瘤,自1924年Berser首先报告以来,国内外文献报告较少,为提高对本病的认识和CT表现,现将我们遇到的2例报告如下,并结合文献简略讨论其临床特征、组织来源以及CT表现.l 病例介绍例1.男,4岁,因左眼向正前突20余天,视物模糊而就诊.检查:左鼻腔粉红色分叶状肿物,无溃疡,鼻腔有脓性分泌物.左眼向正前突,结膜充血,眼球活动受限.CT检查:非增强示筛窦及左眶内有约3.9cm×4.8cm×5.4cm.大小的不规则形软组织密度增高影,CT值29～40Hu,其内有点状高密度影,CT值106Hu,为残留骨质影,见图1.筛窦大部,左眶内缘,右眶及左侧上颌窦,颅底骨质均有破坏,左眼球受压
Olfactory neuroblastoma is a rare malignant tumor. Since the first report by Berser in 1924, there are few reports in the literature at home and abroad. To improve the understanding of this disease and CT, we report the following two cases we encountered, And a brief discussion of the clinical literature with the document, the source of the organization and CT manifestations .l Case description 1. Male, 4 years old, due to the left eye to the anterior process more than 20 days, blurred vision and treatment. Check: left nasal pink leaves Like tumor, no ulcers, purulent nasal secretions. Left eye to the front of the sudden, conjunctival hyperemia, eye activity is limited .CT examination: non-enhanced display sinus and left orbital about 3.9cm × 4.8cm × 5.4 cm. The size of the irregular soft tissue density shadow, CT value 29 ~ 40Hu, which has a bit of high-density shadow, CT value 106Hu, residual bone shadow, shown in Figure 1. Most of the ethmoid sinus, left orbital rim, Right orbital and left maxillary sinus, skull base bone damage, left eye pressure