Bozzao A, Bonamini M, Gallucci M
Centro RM, Università di L'Aquila, Italy.
Rays. 1996 Jan-Mar;21(1):50-69.
Diagnosis of neoplasms of the optic-chiasmatic region is facilitated by assessment of onset symptoms. They represent the basis for a specific radiologic study, allowing a differential diagnosis between radiologically similar forms. An easy approach to these neoplasms is to separate malignant lesions from non-neoplastic space-occupying lesions. Diagnostic imaging of neoplasms of the optic-chiasmatic region is based on MRI, occasionally combined with CT. Because of its peculiar embryology, the region is the site of numerous neoformations. However, differential diagnosis is ready in most cases. To plan the most suitable surgical management, the relations of the lesions with adjacent anatomical structures should be carefully assessed. More complex syndromes (gliomas in NF1, infundibulopeduncular histiocytosis in eosinophilic granulomatosis, etc.) should also be considered.
对视交叉区域肿瘤的诊断可通过评估起病症状来辅助进行。这些症状是进行特定影像学检查的基础，有助于对影像学表现相似的情况进行鉴别诊断。对这些肿瘤的一种简便诊断方法是区分恶性病变与非肿瘤性占位性病变。视交叉区域肿瘤的诊断性影像学检查以磁共振成像（MRI）为基础，偶尔结合计算机断层扫描（CT）。由于该区域特殊的胚胎学特点，它是众多新生物的发生部位。然而，大多数情况下鉴别诊断并不困难。为制定最合适的手术治疗方案，应仔细评估病变与相邻解剖结构的关系。还应考虑更复杂的综合征（如神经纤维瘤病1型中的胶质瘤、嗜酸性肉芽肿中的漏斗柄部组织细胞增多症等）。
