World Neurosurg
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Review
Case Report and Review of the Literature of Schwannomas that Originate from the Falx Cerebri.
Schwannomas not related to cranial nerves are rare. Here, we present a case of a schwannoma that originated from the falx cerebri and review reported cases in the literature. ⋯ Although distinguishing a schwannoma of the falx cerebri from a falx meningioma and metastasis is difficult preoperatively, inclusion of schwannoma of the falx cerebri in the differential diagnosis is important, especially when the patient is relatively young and/or the tumor lacks a dural tail sign.
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Cerebral venous thrombosis (CVT), a rare cerebrovascular condition, is induced by blocked cerebral venous reflux, often presenting nonspecific symptoms. Magnetic resonance imaging (MRI) of the brain may improve the often elusive diagnosis of CVT. However, the sensitivity, specificity, and full spectrum of such MRI findings are poorly understood. ⋯ We conclude that such cases may occur where CVT appears tumor-like on MRI, including mass effect and abnormal contrast enhancement. Therefore, for young and middle-aged adults with episodic and progressive headaches presenting such MRI findings, the possibility of CVT should always be considered. MRI combined with MR venography should be used as the preferred strategy for early diagnosis of CVT.
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Machine learning (ML) is an application of artificial intelligence (AI) that gives computer systems the ability to learn data, without being explicitly programmed. Currently, ML has been successfully used for optical character recognition, spam filtering, and face recognition. The aim of the present study was to review the current applications of ML in the field of neuro-oncology. ⋯ MLBAs in neuro-oncology have been shown to predict patients' outcomes more accurately than conventional parameters in a retrospective analysis. If their high diagnostic accuracy in imaging analysis and detection of somatic mutations are corroborated in prospective studies, the use of tissue diagnosis or liquid biopsy might be curtailed. Finally, MLBAs are promising to help guide targeted therapy, can lead to personalized medicine, and open areas of study in the cancer cellular signaling system, not otherwise known.
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We described the imaging findings of small cell lung carcinoma metastasis to atypical meningioma and the importance of magnetic resonance imaging perfusion graphics at the differential diagnosis. To be able to determine subtypes of meningiomas and differentiate whether they are malignant or benign may provide a preoperative idea to determine prognosis and surgical procedure.
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The modified 5-item frailty index (mFI-5) is a concise comorbidity-based risk stratification tool that has been shown to predict the occurrence of adverse outcomes following various orthopedic surgeries. ⋯ Higher mFI-5 scores were associated with increased postoperative morbidity following elective 1- to 2-level posterior lumbar fusions.