To evaluate the normal and abnormal findings of the deep grey matter structures in CT and MR imaging. To review the wide spectrum of differential diagnosis of bilateral basal ganglia and thalamus pathology.
ANATOMY / FUNCTION B asal ganglia refer to the paired deep grey matter nuclei located,
consisting of: caudate nucleus putamen globus pallidus nucleus accumbens olfactory tubercle From a functional standpoint,
many authors consider the substantia nigra and subthalamic nucleus as part of the basal ganglia. The caudate nucleus,
putamen and globus pallidus compose the corpus striatum ,
while the putamen along with the globus pallidus form the lentiform nucleus . The basal ganglia are widely...
Findings and procedure details
We present our single-centre experience,
with patients admitted to our Emergency department,
initially evaluated with CT imaging using a 16-slice scanner. Inmost cases CT imaging was negative and MRI with a 1.5T scanner complemented further investigation. We display a series of illustrative cases with bilateral basal ganglia and thalamus pathology. 1) Infarct Arterial infarction of both thalami may appeardue to occlusion of the rostral basilar artery.
Clinical presentation includes memoryand...
Bilateral abnormalities of the deep grey matter nuclei on CT or MR imaging usually trigger the need for an in-depth investigation based on the patient’s clinical history and laboratory features.
The radiological findings in most cases can help pinpoint the most probable differential diagnoses or even lead to the correct diagnosis.
Functional Neuroanatomy of the Basal Ganglia.
Cold Spring Harb Perspect Med.
2012 Dec; 2(12): a009621. 2.
Neuropsychiatry of the basal ganglia.
Journal of Neurology,
Neurosurgery & Psychiatry 2002;72:12-21. 3.
Clinical Features of Thalamic Stroke.
Curr Treat Options Neurol 2017; 19: 5. 4.