Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Acute disseminated encephalomyelitis CT
Introduction
Overview
Overview
The appearance of ADEM on cranial CT has rarely been reported. There is a delay between the onset of the clinical signs and the appearance of lesions on CT scan. The correlation was limited between the clinical course and the anatomical distribution and type of abnormality seen on CT scan.
CT
CT
The appearance of ADEM on cranial CT has rarely been reported. There is a delay between the onset of the clinical signs and the appearance of lesions on CT scan. The correlation was limited between the clinical course and the anatomical distribution and type of abnormality seen on CT scan[1]. The findings that have been elucidated in some case reports are[2]:
- Hypodense lesions in the white matter, basal ganglia and brainstem edema
- Contrast-induced spotty, nodular or gyral enhancement
- The enhancement resolved with steroids, leaving persistent hypoattenuated areas, indicating dual components in the pathogenesis of ADEM. Thr vasculitic component is steroid– responsive while the demyelinating component is not.
References
References
- ↑ Lukes SA, Norman D (1983). “Computed tomography in acute disseminated encephalomyelitis”. Ann Neurol. 13 (5): 567–72. doi:10.1002/ana.410130516. PMID 6870208.
- ↑ Thajeb P, Chen ST (1989). “Cranial computed tomography in acute disseminated encephalomyelitis”. Neuroradiology. 31 (1): 8–12. doi:10.1007/BF00342021. PMID 2717010.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sujaya Chattopadhyay, M.D.[2]