Diffuse leptomeningeal glioneuronal tumor (DLGNT) is a low-grade tumor characterized by diffuse leptomeningeal infiltrates. Symptoms are usually secondary to hydrocephalus. Hemiplegic migraine (HM)-like episodes have never been associated with DLGNT, but they have been reported with different inflammatory and tumoral entities involving leptomeninges.

中文翻译：

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偏瘫偏头痛样发作是弥漫性软脑膜胶质神经元肿瘤的首次表现：病例报告。

弥漫性软脑膜胶质神经元肿瘤（DLGNT）是一种低级别肿瘤，其特征是弥漫性软脑膜浸润。症状通常继发于脑积水。偏瘫性偏头痛 (HM) 样发作从未与 DLGNT 相关，但据报道，它们与涉及软脑膜的不同炎症和肿瘤实体有关。