ABSTRACT
Objetivo: describir los hallazgos de imagen clave en los estudios de RM estructural de las demencias de origen neurodegenerativo más frecuentes: enfermedad de Alzheimer, demencia vascular, demencia de cuerpos de Lewy, variantes de la demencia frontotemporal, parálisis supranuclear progresiva, variantes de la atrofia multisistémica, parkinson-demencia y degeneración corticobasal. Conclusión: El papel de la resonancia magnética hoy en día ya no está limitado a excluir causas subyacentes de deterioro cognitivo, sino que puede mostrar patrones de atrofia y otros datos con un alto valor predictivo para determinadas demencias que, aunque no son específicos ni únicos de cada patología, pueden ayudar a confirmar una sospecha diagnóstica o a identificar inicios tempranos de determinados procesos. Por ello es importante que los radiólogos conozcan los hallazgos típicos de las demencias más frecuentes
Objective: To describe and illustrate the key findings on structural magnetic resonance imaging (MRI) in the most common dementias of neurodegenerative origin: Alzheimer's disease, vascular dementia, dementia with Lewy bodies, variants of frontotemporal dementia, progressive supranuclear palsy, variants of multiple system atrophy, Parkinson dementia, and corticobasal degeneration. Conclusion: Today the role of MRI is no longer limited to ruling out underlying causes of cognitive deterioration. MRI can show patterns of atrophy with a predictive value for certain dementias which, although not specific or unique to each disease, can help to confirm diagnostic suspicion or to identify certain processes. For this reason, it is important for radiologists to know the characteristic findings of the most common dementias
Subject(s)
Humans , Dementia/diagnostic imaging , Neurodegenerative Diseases/diagnostic imaging , Magnetic Resonance Spectroscopy/methods , Lewy Body Disease/diagnostic imaging , Alzheimer Disease/diagnostic imaging , Dementia, Vascular/diagnostic imaging , Frontotemporal Dementia/diagnostic imaging , Supranuclear Palsy, Progressive/diagnostic imaging , Parkinson Disease/diagnostic imaging , Spinocerebellar Degenerations/diagnostic imaging , Sensitivity and SpecificityABSTRACT
OBJECTIVE: To describe and illustrate the key findings on structural magnetic resonance imaging (MRI) in the most common dementias of neurodegenerative origin: Alzheimer's disease, vascular dementia, dementia with Lewy bodies, variants of frontotemporal dementia, progressive supranuclear palsy, variants of multiple system atrophy, Parkinson dementia, and corticobasal degeneration. CONCLUSION: Today the role of MRI is no longer limited to ruling out underlying causes of cognitive deterioration. MRI can show patterns of atrophy with a predictive value for certain dementias which, although not specific or unique to each disease, can help to confirm diagnostic suspicion or to identify certain processes. For this reason, it is important for radiologists to know the characteristic findings of the most common dementias.
Subject(s)
Dementia/diagnostic imaging , Magnetic Resonance Imaging , HumansSubject(s)
Humans , Female , Adult , Fasciitis, Necrotizing/diagnosis , Debridement , Low Back Pain/etiology , Multiple Organ Failure/etiologySubject(s)
Bezoars/diagnostic imaging , Pneumoperitoneum/diagnostic imaging , Abdominal Pain/etiology , Bezoars/complications , Bezoars/therapy , Endoscopy, Digestive System , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Pneumoperitoneum/complications , Therapeutic Irrigation , Tomography, X-Ray ComputedABSTRACT
CASE REPORT: We present a case of metastatic larynx cancer in the cavernous sinus. It presented itself as a right sixth cranial nerve palsy which progressed into a painful ophthalmoplegia with normal CT and RNM in its early stages. DISCUSSION: We must suspect a cavernous sinus invasion in patients with cranial nerve palsies and with a history of malignancy, despite negative radiologic findings. Tumoral invasion of the skull base has been described in pharyngeal neoplasms but it is exceptional in larynx carcinomas.
