The study design involved case reports and review of the literature. Oncotic aneurysm from choriocarcinoma is an extremely rare event that should be known by all neurosurgeons and suspected in women of childbearing age. The purpose of this article is to report the authors' experience and to provide insight on clinical presentation and radiological signs to aware the reader to this entity and then to prevent misdiagnosis. The authors report two cases of ruptured oncotic aneurysm treated at their institution in 2010. A review of the literature was performed to discuss the pathogenesis and the role of the neurosurgeon. Chemotherapy is the treatment of choice making surgery necessary only for patients with large intracerebral haematoma that represents an immediate threat.
Introduction Prognosis of dumbbell neuroblastoma (NBL) is mainly determined by the sequelae induced by the tumor itself and the neurosurgical approach. However, after primary chemotherapy, surgical management of the residual tumor, especially the spinal canal component, remains controversial. Methods We conducted a single‐center retrospective cohort study over the last 15 years (2002–2017) including patients treated for NBL with spinal canal extension focusing on timing and type of surgery, complications, and functional and oncological follow‐up. Results Thirty‐two children (14 M, 18 F) were managed for NBL, with the majority (26) presenting with NBL stroma poor while four had ganglioneuroblastoma intermixed, one nodular, and one ganglioneuroma. All but two patients received neoadjuvant chemotherapy. Upfront laminotomy for spinal cord decompression was performed in two patients; nine patients had extraspinal surgery with a follow‐up neurosurgical procedure in seven cases; eight patients had initial neurosurgery followed by an extraspinal procedure, while six patients underwent a combined multidisciplinary approach. With a median follow up of 3.6 years (0.1–14.9), 29 patients (90.6) are alive and two out of three (19, 65.5%) have functional sequelae. Conclusion Patients with NBL with persistent spinal canal extension of the tumor after neoadjuvant chemotherapy treated at our center had outcomes that compare favorably with the literature. This is likely due to the multidisciplinary approach to optimal surgical strategy and continuous evaluation of the respective risks of tumor progression. Neurological disability results from initial spinal cord compression or the radicular sacrifice required for tumor resection.
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