• World Neurosurg · Jun 2024

    Review Case Reports

    Brain metastasis of non-small cell lung cancer after disease-free survival of 5 years: case series and comprehensive literature review.

    • Takahiro Suzuki, Shoichi Deguchi, Keigo Matsushima, Shinya Katsumata, Hideaki Kojima, Maeda Koki, Hayato Konno, Mitsuhiro Isaka, Takuma Oishi, Yasuhisa Ohde, Takashi Sugino, Koichi Mitsuya, and Nakamasa Hayashi.
    • Division of Neurosurgery, Shizuoka Cancer Center, Shizuoka, Japan; Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
    • World Neurosurg. 2024 Jun 1; 186: e353e359e353-e359.

    BackgroundIn the treatment of nonsmall cell lung cancer (NSCLC), a disease-free survival of 5 years is a criterion for cure. This study aimed to evaluate the characteristics and outcomes of patients with brain metastases of NSCLC after a disease-free survival of 5 years (late recurrent brain metastasis [LRBM]).MethodsWe reviewed 1281 consecutive patients with brain metastasis of lung cancer at a single institute between November 2014 and December 2022. Relevant articles were retrieved from PubMed. Only peer-reviewed journals published in English were included.ResultsSix patients (0.47%) showed LRBM. Three were male. The median age at lung cancer diagnosis was 45 years. The histological diagnosis of all patients was adenocarcinoma. Driver gene mutations were observed in five patients. The median latency period from lung cancer treatment to the development of brain metastasis was 13 years. All patients had no metastasis to any other organs and underwent craniotomies. The median follow-up duration after craniotomy was 3.5 years. No local intracranial recurrences were observed. Three patients had distant intracranial recurrences at 7, 2, and 0.6 years after craniotomy. Five patients survived for 8, 4, 3, 2, and 0.3 years after craniotomy. One patient experienced re-recurrence in the lung 4 years after craniotomy and died 3.7 years later. In our systematic review, only six studies described LRBM of NSCLC.ConclusionsLRBM is rare in patients with NSCLC. In our institution, many of these patients harbored driver gene mutations, and achieved long-term survival with aggressive local therapy. Multicenter analysis is mandatory.Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.

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