Primary pigmented neoplasms of the nervous system are rare tumors. The literature suggests that they behave aggressively and carry a guarded prognosis. We present 2 patients with pigmented schwannomas of spinal nerves who following therapy are alive, functioning and without evidence of tumor 14 and 17 years later. We wish to emphasize that the presence of melanin alone does not equate with a malignant course. The literature is reviewed and theories of histogenesis for these unusual lesions are discussed.
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http://dx.doi.org/10.1002/1097-0142(19800715)46:2<391::aid-cncr2820460230>3.0.co;2-c | DOI Listing |
Brain Sci
January 2025
Centre of Medical Sciences, Jan and Jędrzej Śniadeccy University of Science and Technology, 85-796 Bydgoszcz, Poland.
Background/objectives: While most studies on the postoperative condition of patients with spinal cord tumors describe long-term outcomes, data are needed on immediate surgical outcomes demanding rehabilitation to make informed assessments for postoperative planning. The aim of this study was to identify factors predicting function and rehabilitative needs after intradural spinal tumor surgery.
Methods: Eighty-five prospectively recruited patients underwent surgery for intradural intramedullary (ID-IM; = 23) and extramedullary (ID-EM; = 62) tumors.
Eur Spine J
January 2025
Department of Neurosurgery, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
Background: Giant sacral and presacral schwannomas are very rare conditions and their prevalence is estimated to account for only 0.3 to 3.3% of overall schwannomas.
View Article and Find Full Text PDFRadiol Case Rep
March 2025
University of Baghdad, College of Medicine, Baghdad, Iraq.
Intradural extramedullary spinal cord tumors are rare but can cause significant neurological symptoms. We present a case of a 23-year-old male who developed progressive bilateral leg pain and lower limb weakness 2 years after undergoing posterior spinal fixation for a T12 burst fracture. Magnetic resonance imaging (MRI) revealed an intradural extramedullary tumor at the site of the previous surgery.
View Article and Find Full Text PDFSurg Neurol Int
December 2024
Department of Spinal Neurosurgery, Kyoto Katsura Hospital, Kyoto, Japan.
Background: The delayed-window indocyanine green (DWICG) technique is useful for the removal of brain and spinal tumors.
Case Description: A 41-year-old female presented with lower left back and radicular pain. An magnetic resonance imaging (MRI) revealed an extramedullary L3 lesion located ventrally in the spinal canal that appeared to be a schwannoma.
Neurospine
December 2024
Hospital Privado de Rosario, Rosario, Argentina.
Endoscopic spinal surgery has gained increasing popularity over the past 10 years. Its muscle-preserving nature, reduction in postoperative pain, and lower complication rates have contributed to the growing number of surgeons adopting this technique year after year. This same progression has led to the application of the technique in oncological pathology, primarily for separation surgeries and biopsies of extradural lesions.
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