Browsing by Author "Nedeljkovic, Aleksandra (58314224800)"

Purpose: Intracranial collision tumor is a rare entity that represents the coexistence of two histopathological different tumor types in the same area without histological admixture or an intermediate cell population zone. So far, several cases of collision tumors with ganglioglioma as its component have been reported in the literature, while supratentorial ependymoma has never been reported as a collision tumor component. We are presenting a unique case of collision tumor in patient without previous history of head trauma, neurological surgery, radiotherapy, or phakomatosis. Methods and results: A 17-year-old male with no previous history of head trauma, neurological surgery, radiotherapy, or phakomatosis was presented to our clinic with grand mal seizure. Brain magnetic resonance imaging with gadolinium contrast was done revealing a contrast-enhancing lesion of right frontal lobe closely related to dura, surrounded by perifocal edema. The patient underwent a gross total tumor resection. Histological examination revealed collision tumor with two distinct components: ganglioglioma and supratentorial ependymoma. Conclusion: To our best knowledge, no previous reports of collision tumor composed of ganglioglioma and supratentorial ependymoma in a single patient have been reported. We believe that this report could significantly contribute to further surgical practice as well as to treatment decision for these types of collision tumors. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

Background/Objectives: Endovascular embolization is an effective treatment option for cerebral arteriovenous malformation (AVM) and dural arteriovenous fistulas (DAVFs). The objective of this study was to assess the safety and efficacy of MenoxTM in patients with cranial dural arteriovenous fistulas. Methods: From January 2021 to January 2023, 19 patients with intracranial DAVFs underwent embolization procedures. All patients were treated by embolization with MenoxTM or/and in combination with other embolization products such as Onyx (Covidien, Irvine, California), PHIL (MicroVention, Tustin, California), and Squid (Balt Extrusion, Montmorency, France). Treatment approaches were selected depending on the anatomical location of the fistula. Patients were monitored and followed-up for 12 months. Results: The patients’ mean age was 56.26 ± 16.49 years. Of these 19 patients, 58% (n = 11) were treated with the MenoxTM liquid embolizing agent (LEA) alone or in combination with different LEAs, while n = 7 were treated with other LEAs and 1 patient was treated solely with coils. Complete occlusion of DAVFs with MenoxTM and other agents was evident in 68.4% (n = 13/19) of patients. Complete occlusion (100%) was observed in the sinus rectus, transverse sinus, and diploic veins of the orbital roof, while complete occlusion was observed in 50% of falcotentorial patients and 60% of superior sagittal sinus patients. The lowest rate of complete fistula obliteration was observed in the dural carotid cavernous fistula (CCF) group (25%). An intra-procedural adverse event occurred in one patient. No other post-procedural adverse events were noted. Furthermore, in patients treated with MenoxTM, total occlusion was achieved in 72.7% (n = 8) of patients, whereas the non-MenoxTM group had 62.5% (n = 5) of patients with 100% occlusion and 37.5% (n = 3) of patients with subtotal occlusion. Conclusions: Outcomes using MenoxTM alone and in combination with other agents were effective, and it is safe for the treatment of dural arteriovenous fistulas. © 2024 by the authors.

Introduction: Developmental venous anomaly (DVA) is a common cerebral vascular variant, typically considered benign and clinically silent. We report an exceptional case of a symptomatic infratentorial DVA in a 9-year-old child that became clinically evident after a minor head trauma. Case Report: The patient presented with neurological symptoms indicative of posterior fossa involvement, including headache, nausea, and ataxia. MRI revealed a cluster of abnormally dilated medullary veins in the right cerebellar hemisphere converging into an enlarged collector vein, consistent with a DVA. Significant cerebellar edema was identified in association with detected vascular malformation. The patient was managed conservatively with antiedematous therapy and analgesics, which led to rapid resolution of symptoms and complete recovery. Conclusion: This case demonstrates that DVAs can become acutely symptomatic secondary to significant vasogenic edema following even minor head trauma, likely due to transient hemodynamic disturbance without thrombosis or hemorrhage. Our findings challenge the perception of DVAs as invariably benign entities and warrant further investigation into their post-traumatic pathophysiology. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.

Introduction: Developmental venous anomaly (DVA) is a common cerebral vascular variant, typically considered benign and clinically silent. We report an exceptional case of a symptomatic infratentorial DVA in a 9-year-old child that became clinically evident after a minor head trauma. Case Report: The patient presented with neurological symptoms indicative of posterior fossa involvement, including headache, nausea, and ataxia. MRI revealed a cluster of abnormally dilated medullary veins in the right cerebellar hemisphere converging into an enlarged collector vein, consistent with a DVA. Significant cerebellar edema was identified in association with detected vascular malformation. The patient was managed conservatively with antiedematous therapy and analgesics, which led to rapid resolution of symptoms and complete recovery. Conclusion: This case demonstrates that DVAs can become acutely symptomatic secondary to significant vasogenic edema following even minor head trauma, likely due to transient hemodynamic disturbance without thrombosis or hemorrhage. Our findings challenge the perception of DVAs as invariably benign entities and warrant further investigation into their post-traumatic pathophysiology. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.