弥漫性低级别胶质瘤切除后，可能会异常发生占位性瘤床囊肿。它们的机制和管理仍然存在争议。作者报告了两例左侧颞部弥漫性低级别胶质瘤切除术后出现的瘤床囊肿，有两种不同的演变。第一例患者表现出囊肿体积自发减少，但没有报告任何症状。相比之下，第二名患者的囊肿体积逐渐增大，并报告有头痛和找词困难。进行了内镜囊肿开窗术，症状缓解，手术腔正常化。瘤床囊肿是颞部低级别胶质瘤切除术的罕见并发症。它的形成是由于脉络丛被广泛张开到手术腔中的颞角卡压所致。仅在有症状的情况下才应进行内镜囊肿开窗术。 https://thejns.org/doi/10.3171/CASE23674。

Space-occupying tumor bed cysts may exceptionally happen after the resection of diffuse low-grade glioma. Their mechanism and management remain debated. The authors report two cases of tumor bed cysts occurring after the resection of a left temporal diffuse low-grade glioma with two different evolutions.The first patient showed a spontaneous decrease in the cyst volume and did not report any symptoms. In contrast, the second patient showed a progressive increase in the cyst volume and reported headaches and difficulties in finding words. Endoscopic cyst fenestration was performed and led to symptom relief and normalization of the surgical cavity.A tumor bed cyst is a rare complication of temporal low-grade glioma resection. Its formation is due to entrapment of the choroid plexus in the temporal horn widely opened into the surgical cavity. Endoscopic cyst fenestration should be offered only in symptomatic cases. https://thejns.org/doi/10.3171/CASE23674.