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Automated Volumetric Milling Area Planning for Acoustic Neuroma Surgery via Evolutionary Multi-Objective Optimization.
Sensors (Basel)
January 2025
School of Biomedical Engineering, Tsinghua University, Shuang Qing Road, Beijing 100084, China.
Mastoidectomy is critical in acoustic neuroma surgery, where precise planning of the bone milling area is essential for surgical navigation. The complexity of representing the irregular volumetric area and the presence of high-risk structures (e.g.
View Article and Find Full Text PDFAncient schwannoma of the submandibular gland.
BMJ Case Rep
January 2025
Division of Plastic and Reconstructive Surgery, Department of Surgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
Schwannomas, benign tumours derived from Schwann cells, exhibit slow growth rates and are commonly found extracranially in the head, neck and extremities. However, intraoral and salivary gland schwannomas are less frequent. Ancient schwannomas, characterised by histological degenerative changes, represent a rare variant.
View Article and Find Full Text PDFCharacterization of jugular bulb position on computed tomography (CT) with implications for excision of vestibular schwannomas.
Neurosurg Rev
January 2025
Department of Neurological Sciences, Christian Medical College Vellore- Ranipet Campus Vellore, Vellore, Tamil Nadu, 632517, India.
To describe the distribution of jugular bulb position and pneumatization of posterior lip of internal auditory meatus (IAM) in patients with vestibular schwannoma (VS). This retrospective study included 43 patients who had a thin slice (< 2 mm) CT temporal bone for preoperative planning of retrosigmoid approach for excision of VS between March 2011 and March 2021. On computed tomography (CT), high riding jugular bulb was defined by its relationship to IAM and correlated with type of jugular bulb according to Manjila et al.
View Article and Find Full Text PDFPreoperative Vascular and Cranial Nerve Imaging in Skull Base Tumors.
Cancers (Basel)
December 2024
Department of Neurosurgery, Institute of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
Skull base tumors such as meningiomas and schwannomas are often pathologically benign. However, surgery for these tumors poses significant challenges because of their proximity to critical structures such as the brainstem, cerebral arteries, veins, and cranial nerves. These structures are compressed or encased by the tumor as they grow, increasing the risk of unintended injury to these structures, which can potentially lead to severe neurological deficits.
View Article and Find Full Text PDFClinical benefits of central pancreatectomy for a patient with pancreatic schwannoma and diabetes.
World J Surg Oncol
January 2025
Department of Hepatobiliary Surgery, Guangzhou Red Cross Hospital of Jinan University, Tongfu Roud 396, Guangzhou, 510220, Guangdong, China.
Schwannomas are tumors that originate from the glial cells of the nervous system and can occur on myelinated nerve fibers throughout the body, especially in the craniofacial region. However, pancreatic schwannomas are extremely rare. We report a case of a pancreatic schwannoma that was difficult to differentiate from other pancreatic tumors preoperatively.
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