Quantitative and Visual Characteristics of Primary Central Nervous System Lymphoma on 18 F-FDG-PET
In conclusion, aside from SUVmax andT/N values, other visual characteristics are also available to facilitate the differentiation of PCNSLs from other brain conditions on18F-FDG-PET scans.
In conclusion, CSF ctDNA can better detect CNS lesions than plasma ctDNA and FC. In addition, CSF ctDNA predicted CNS relapse in CNS and systemic lymphomas. PMID: 32079701 [PubMed - as supplied by publisher]
This report describes the clinical presentation and histopathologic findings in 2 patients who initially received a diagnosis of primary CNS vasculitis, but did not show long-term response to treatment. In both cases, a second biopsy was performed, and the final diagnosis was primary CNS lymphoma (PCNSL). Summary Analyzing diagnostically challenging cases can increase recognition of PCNSL and improve outcomes in this rare condition.
ConclusionrCBV and mean PSR were useful in grading and differentiating infratentorial tumors. Proper cutoff values were important in the accuracy of perfusion-weighted imaging in posterior fossa tumors.
This study shows that CA are released from periventricular and subpial regions to the cerebrospinal fluid and are present in the cervical lymph nodes, into which cerebrospinal fluid drains through the meningeal lymphatic system. We also show that CA can be phagocytosed by macrophages. We conclude that CA can act as containers that remove waste products from the brain and may be involved in a mechanism that cleans the brain. Moreover, we postulate that CA may contribute in some autoimmune brain diseases, exporting brain substances that interact with the immune system, and hypothesize that CA may contain brain markers that m...
ConclusionsCSF-based metabolomics to a large extent reliably identifies significant metabolic differences between different brain tumors and shows great potential for diagnosis of brain tumors.
AbstractPrimary central nervous system lymphomas (PCNSLs) are typically intraparenchymal. A subset of PCNSLs predominantly arises in the ventricles, with minimal parenchymal involvement. We review the clinical, radiological, and pathological features of ventricle-predominant PCNSLs (VP-PCNSLs) in 40 previously reported cases and report 5 additional cases. Including all cases of VP-PCNSLs (n = 45), 38% were diffuse large B-cell lymphomas (DLBCL), 11% were Burkitt lymphomas, 7% were MALT lymphomas, 4% were T-cell lymphomas, and 40% were lymphomas, not otherwise classified. VP-PCNSLs show rapid clinical progress...
This article provides a brief discussion of the major 2016 updates to the WHO CNS classification scheme and reviews typical MR imaging findings of adult primary CNS neoplasms, including diffuse infiltrating gliomas, ependymal tumors, neuronal/glioneuronal tumors, pineal gland tumors, meningiomas, nerve sheath tumors, solitary fibrous tumors, and lymphoma. PMID: 31582041 [PubMed - in process]
ConclusionsTexture analysis has potential in the differentiation between primary central nervous system lymphoma from metastatic brain tumors. Moreover, combination of single texture shows more promising and effective ability in discrimination.Legal entity responsible for the studyXuelei Ma.FundingHas not received any funding.DisclosureAll authors have declared no conflicts of interest.
This article provides a brief discussion of the major 2016 updates to the WHO CNS classification scheme and reviews typical MR imaging findings of adult primary CNS neoplasms, including diffuse infiltrating gliomas, ependymal tumors, neuronal/glioneuronal tumors, pineal gland tumors, meningiomas, nerve sheath tumors, solitary fibrous tumors, and lymphoma.
FINDINGSCancer that has spread to the central nervous system is notoriously difficult to treat. Now, UCLA researchers have developed a drug delivery system that breaks through the blood-brain barrier in order to reach and treat cancer that has spread to the central nervous system.In research conducted in mice, a single dose of cancer drugs in a nanoscale capsule developed by the scientists eliminated all B-cell lymphoma that had metastasized to the animals ’ central nervous system.BACKGROUNDAbout 15% to 40% of all cancers spread to the nervous system, but there are few treatment options and they only work in a small ...