Peretti-Viton P, Perez-Castillo A M, Raybaud C, Grisoli F, Bernard F, Poncet M, Salamon G
Service de Neuroradiologie, CHU Timone, Marseille, France.
J Neuroradiol. 1991;18(2):189-99.
Gangliogliomas and gangliocytomas are rare and benign neuronal tumors which affect young subjects. This study concerns 3 cases of ganglioglioma and 3 cases of gangliocytoma explored by CT and MRI and confirmed by pathological examination. The most typical CT image was that of an often calcified contrast-enhanced cystic tumor. At MRI, each tumor emitted a low-intensity signal on T1-weighted sequences and a high-intensity signal on T2-weighted sequences. Contrast enhancement after gadolinium injection was frequent. Neuroradiology is not specific, and these tumors are usually diagnosed at pathology. However, the diagnosis may be considered in young patients with a history of old, drug-resistant partial epilepsy and having a contrast-enhanced, calcified cystic lesion in the temporal lobe or the cerebellum.
神经节胶质瘤和神经节细胞瘤是罕见的良性神经元肿瘤，好发于年轻患者。本研究涉及3例经CT和MRI检查并经病理检查确诊的神经节胶质瘤和3例神经节细胞瘤。最典型的CT图像表现为常伴有钙化的强化囊性肿瘤。在MRI上，每个肿瘤在T1加权序列上呈低强度信号，在T2加权序列上呈高强度信号。注射钆后造影剂增强很常见。神经放射学表现不具有特异性，这些肿瘤通常在病理检查时确诊。然而，对于有陈旧性耐药性部分性癫痫病史且颞叶或小脑有强化钙化囊性病变的年轻患者，可考虑作出诊断。
