Samples Derek C, Mulcahy Levy Jean M, Hankinson Todd C
Department of Neurosurgery, Children's Hospital Colorado, Aurora, CO, United States.
Department of Pediatrics (Center for Cancer and Blood Disorders), University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, United States.
Front Surg. 2022 May 4;9:884250. doi: 10.3389/fsurg.2022.884250. eCollection 2022.
Optic pathway glioma (OPG) comprises 10% of pediatric brain tumors and 40% of all pediatric low-grade gliomas (pLGGs). While generally considered benign pathologically, many require interventions with chemotherapy, radiation, or targeted therapies. Management has historically foregone tissue diagnosis given the classical clinical/radiographic presentation of these tumors, inability to safely remove the lesions surgically, and efficacy and safety of available chemotherapy options. Furthermore, when considering such aspects as their delicate location, the role of surgery continues to be heavily debated. More recently, however, a greater understanding of the genetic drivers of OPGs has made operative tissue sampling a critical step in management planning, specifically for patients without Neurofibromatosis, Type I (NF1). Given the need for long-term, complex management of pediatric OPGs, it is crucial that a multidisciplinary approach is employed, and the rapidly expanding role of molecular characterization be incorporated into their management.
视神经通路胶质瘤(OPG)占儿童脑肿瘤的10%,占所有儿童低级别胶质瘤(pLGG)的40%。虽然在病理上通常被认为是良性的,但许多病例需要化疗、放疗或靶向治疗。鉴于这些肿瘤典型的临床/影像学表现、无法通过手术安全切除病变以及现有化疗方案的有效性和安全性,以往的治疗往往不进行组织诊断。此外,考虑到其位置的特殊性,手术的作用仍存在激烈争论。然而,最近,对OPG基因驱动因素的更深入了解使手术组织采样成为管理规划中的关键步骤,特别是对于没有I型神经纤维瘤病(NF1)的患者。鉴于儿童OPG需要长期、复杂的管理,采用多学科方法并将分子特征的快速扩展作用纳入其管理至关重要。