Tumefactive Primary Central Nervous System Vasculitis: Dynamic Susceptibility Contrast Perfusion-Weighted Magnetic Resonance Imaging Findings With Histological Correlation.

Autor:	Muccio CF; Unit of Neuroradiology, Department of Neurosciences, 'San Pio' Hospital, Benevento, Italy., Di Lorenzo L; UO Riabilitazione, CMR SpA, Sant'Agata dei Goti, Neuromed network Pozzilli, Italy., Lepore G; Unit of Pathology, 'San Pio' Hospital, Benevento, Italy., Savarese F; Unit of Neuroradiology, Department of Neurosciences, 'San Pio' Hospital, Benevento, Italy., Schipani S; Unit of Neuroradiology, Department of Neurosciences, 'San Pio' Hospital, Benevento, Italy., Chiarotti I; Department of Neurological and Motor Sciences, Azienda Ospedaliero-Universitaria Senese, Policlinico 'Santa Maria alle Scotte', Siena, Italy., Cerase A; Department of Neurological and Motor Sciences, Azienda Ospedaliero-Universitaria Senese, Policlinico 'Santa Maria alle Scotte', Siena, Italy.
Jazyk:	angličtina
Zdroj:	La Clinica terapeutica [Clin Ter] 2024 Mar-Apr; Vol. 175 (2), pp. 112-117.
DOI:	10.7417/CT.2024.5042
Abstrakt:	Purpose: Primary central nervous system vasculitis (PCNSV) is a rare inflammatory disease affecting the central nervous system. In some cases, it presents with large, solitary lesion with extensive mass effect that mimic intracranial neoplasms. This condition results in a diagnostic confusion for neuroradiologists because the differentiation is almost impossible on conventional MRI sequences. The aim of this study is to reveal the significance of dynamic susceptibility contrast (DSC) perfusion-weighted imaging in differentiating of tumefactive PCNSV (t-PCNSV) lesions from intracranial neoplasms such as glio-blastomas and metastasis. Methods: In this retrospective study, DSC of 8 patients with biopsy-proven t-PCNSV has been compared with DSC obtained in 10 patients with glioblastoma, 10 patients with metastasis, who underwent surgery and histopathological confirmation. The ratio of relative cerebral blood volume (rrCBV) was calculated by rCBV (lesion) / rCBV (controlateral normal-appearing white matter) in the gadolinium-enhancing solid areas. Results: The mean rrCBV was 0.86±0.7 (range: 0.76-0.98) in the patients with t-PCNSV, 5,16±0.79 in patients with glioblastoma (range: 3.9-6.3), and 4.27±0.73 (range: 2.8-5.3) in patients with metastases. Conclusion: DSC-PWI seems to be useful in the diagnostic work-up of t-PCSNVs. A low rrCBV, i.e. a rCBV similar or lower to that of the contralateral normal white matter, seems to be consistent with the possibility of t-PCSNV.
Databáze:	MEDLINE
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