概述

神经母细胞瘤是一种起源于神经母细胞的癌症。神经母细胞是未成熟的神经细胞。它们存在于身体的多个部位。

神经母细胞瘤最常发生于肾上腺中的神经母细胞。肾上腺位于每侧肾脏的顶部。这些腺体分泌调控重要身体功能的激素。肾上腺也可能出现其他癌症和肿瘤,如嗜铬细胞瘤。这些疾病与神经母细胞瘤不同,但可能引起类似症状。

含有神经母细胞的身体其他部位(如脊柱、腹部、胸部和颈部)也可能发生神经母细胞瘤。如果扩散,还可能影响身体的其他部位。扩散后的这种癌症,被称为转移性神经母细胞瘤。

神经母细胞瘤通常影响 5 岁及以下儿童。症状因其在体内的发生部位而异。

某些类型的神经母细胞瘤可能自愈。其他类型的神经母细胞瘤则需要治疗。治疗方法包括手术、化疗、放射疗法和骨髓移植。医护团队将选择最适合您孩子的神经母细胞瘤治疗方法。

胶质母细胞瘤和肾母细胞瘤(又称威尔姆斯瘤)等其他癌症与神经母细胞瘤名称类似,但并非同类。这些癌症的名称中均含有“母细胞瘤”一词,表示癌症或者说肿瘤是由母细胞构成。母细胞是尚未完全发育成熟的细胞。神经母细胞瘤则起源于处于母细胞阶段的神经细胞(即神经母细胞)。

症状

神经母细胞瘤的体征和症状因身体受累部位的不同而异。这种癌症起源于被称为神经母细胞的未成熟神经细胞。神经母细胞存在于身体的多个部位。

如果癌变仅局限于原发部位,被称为局限性神经母细胞瘤,未必出现症状。如果癌变部位生长,导致邻近区域受累(称为区域性神经母细胞瘤”)或扩散至身体远处部位(称为转移性神经母细胞瘤),更可能出现症状。

肾上腺和腹部的神经母细胞瘤可能引发以下症状:

  • 腹部疼痛。
  • 皮下肿块,通常触之不痛。
  • 腹泻或便秘。

胸部和颈部的神经母细胞瘤可能引发以下症状:

  • 哮鸣。
  • 呼吸困难。
  • 眼睛变化,包括眼睑下垂和瞳孔大小不等。

脊柱附近的神经母细胞瘤可能引发以下症状:

  • 背痛。
  • 排尿或排便困难。
  • 腿部无力。

转移性神经母细胞瘤可能引发以下症状:

  • 骨痛(可能导致幼儿行走时跛行)。
  • 眼周出现暗紫色瘀斑样圆圈,形似浣熊眼。
  • 发热。
  • 易激怒。
  • 皮下组织肿块,通常无疼痛感。
  • 生长发育或体重增长未达预期。

何时就诊

Contact your child's healthcare professional if your child has any symptoms that worry you. Mention any changes in your child's behavior, habits or appearance.

病因

神经母细胞瘤的病因尚不明确。这种癌症起源于被称为神经母细胞的未成熟神经细胞。神经母细胞存在于身体的多个部位。

神经母细胞瘤起源于神经母细胞的 DNA 发生变化。细胞的 DNA 含有指示细胞工作的指令。在健康细胞中,DNA 会发出指令让细胞以一定的速度生长和增殖。这些指令会指示细胞在设定的时间死亡。而在癌细胞中,DNA 的变化给出了不同的指令。这些变化指示癌细胞快速生长和增殖。在正常细胞应该死亡时,癌细胞仍继续存活。这会导致细胞过多。

癌细胞可能形成一个肿块,称为肿瘤。肿瘤可能生长、侵入并破坏健康的机体组织。随着时间的推移,癌细胞可能会脱离原发病灶并扩散至身体其他部位。发生扩散的癌症被称为转移性癌。

风险因素

神经母细胞瘤的风险因素包括:

  • 年幼。 儿童患神经母细胞瘤的风险较高。这种癌症最常见于 5 岁及以下儿童人群。
  • 遗传综合征。 某些家族遗传的 DNA 突变可能增加患神经母细胞瘤的风险。被认为会增加患病风险的遗传综合征包括特纳综合征、科斯特洛综合征和家族性神经母细胞瘤。但是医务人员认为只有少数神经母细胞瘤是遗传性的。

目前尚无预防神经母细胞瘤的已知方法。

并发症

神经母细胞瘤的并发症可能包括:

  • 癌症扩散。 随着时间推移,癌细胞可能扩散到身体其他部位。当神经母细胞瘤扩散时,被称为转移性神经母细胞瘤。神经母细胞瘤最常扩散到淋巴结、骨髓、肝脏、皮肤和骨骼。
  • 脊髓受压。 神经母细胞瘤可能增大并压迫脊髓,造成脊髓受压。脊髓压迫可能会导致疼痛和瘫痪。
  • 癌症分泌物引发的症状。 神经母细胞瘤细胞可能分泌刺激其他组织的化学物质。受刺激的组织可能引发被称为副肿瘤综合征的症状。副肿瘤综合征的症状可能包括快速眼动和协调障碍。其他症状包括腹部肿胀和腹泻。

Sept. 30, 2025

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