Cerebral tumor or pseudotumor?
Document type :
Article dans une revue scientifique
PMID :
Title :
Cerebral tumor or pseudotumor?
Author(s) :
Leclercq, D [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Trunet, S [Auteur]
Bertrand, Anne [Auteur]
Algorithms, models and methods for images and signals of the human brain = Algorithmes, modèles et méthodes pour les images et les signaux du cerveau humain [ICM Paris] [ARAMIS]
Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute [ICM]
Galanaud, Damien [Auteur]
Algorithms, models and methods for images and signals of the human brain = Algorithmes, modèles et méthodes pour les images et les signaux du cerveau humain [ICM Paris] [ARAMIS]
Lehéricy, S [Auteur]
Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute [ICM]
Dormont, Didier [Auteur]
Algorithms, models and methods for images and signals of the human brain = Algorithmes, modèles et méthodes pour les images et les signaux du cerveau humain [ICM Paris] [ARAMIS]
Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute [ICM]
Drier, A [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Trunet, S [Auteur]
Bertrand, Anne [Auteur]
Algorithms, models and methods for images and signals of the human brain = Algorithmes, modèles et méthodes pour les images et les signaux du cerveau humain [ICM Paris] [ARAMIS]
Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute [ICM]
Galanaud, Damien [Auteur]
Algorithms, models and methods for images and signals of the human brain = Algorithmes, modèles et méthodes pour les images et les signaux du cerveau humain [ICM Paris] [ARAMIS]
Lehéricy, S [Auteur]
Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute [ICM]
Dormont, Didier [Auteur]
Algorithms, models and methods for images and signals of the human brain = Algorithmes, modèles et méthodes pour les images et les signaux du cerveau humain [ICM Paris] [ARAMIS]
Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute [ICM]
Drier, A [Auteur]
Journal title :
Diagnostic and Interventional Imaging
Pages :
906-16
Publisher :
Elsevier
Publication date :
2014-09-30
ISSN :
2211-5684
HAL domain(s) :
Sciences du Vivant [q-bio]/Ingénierie biomédicale/Imagerie
Sciences du Vivant [q-bio]/Neurosciences [q-bio.NC]/Neurobiologie
Sciences du Vivant [q-bio]/Neurosciences [q-bio.NC]/Neurobiologie
English abstract : [en]
Pseudotumoral lesions are uncommon but important to identity lesions. They can occur during inflammatory diseases (systemic diseases, vasculitis, demyelinating diseases), infectious, and vascular diseases. Also, in a patient ...
Show more >Pseudotumoral lesions are uncommon but important to identity lesions. They can occur during inflammatory diseases (systemic diseases, vasculitis, demyelinating diseases), infectious, and vascular diseases. Also, in a patient with a treated tumor, pseudo-progression and radionecrosis must be differentiated from the tumoral development. Diagnosis can be difficult on an MRI scan, but some MRI aspects in conventional sequences, diffusion, perfusion and spectroscopy can suggest the pseudotumoral origin of a lesion. Imaging must be interpreted according to the context, the clinic and the biology. The presence of associated intracranial lesions can orientate towards a systemic or infectious disease. A T2 hyposignal lesion suggests granulomatosis or histiocytosis, especially if a meningeal or hypothalamic-pituitary involvement is associated. Non-tumoral lesions are generally not hyperperfused. In the absence of a definitive diagnosis, the evolution of these lesions, whether under treatment or spontaneous, is fundamental.Show less >
Show more >Pseudotumoral lesions are uncommon but important to identity lesions. They can occur during inflammatory diseases (systemic diseases, vasculitis, demyelinating diseases), infectious, and vascular diseases. Also, in a patient with a treated tumor, pseudo-progression and radionecrosis must be differentiated from the tumoral development. Diagnosis can be difficult on an MRI scan, but some MRI aspects in conventional sequences, diffusion, perfusion and spectroscopy can suggest the pseudotumoral origin of a lesion. Imaging must be interpreted according to the context, the clinic and the biology. The presence of associated intracranial lesions can orientate towards a systemic or infectious disease. A T2 hyposignal lesion suggests granulomatosis or histiocytosis, especially if a meningeal or hypothalamic-pituitary involvement is associated. Non-tumoral lesions are generally not hyperperfused. In the absence of a definitive diagnosis, the evolution of these lesions, whether under treatment or spontaneous, is fundamental.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
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