Thalamic lesions: a radiological review

Behav Neurol. 2014;2014:154631. doi: 10.1155/2014/154631. Epub 2014 Jul 2.

Abstract

Background: Thalamic lesions are seen in a multitude of disorders including vascular diseases, metabolic disorders, inflammatory diseases, trauma, tumours, and infections. In some diseases, thalamic involvement is typical and sometimes isolated, while in other diseases thalamic lesions are observed only occasionally (often in the presence of other typical extrathalamic lesions).

Summary: In this review, we will mainly discuss the MRI characteristics of thalamic lesions. Identification of the origin of the thalamic lesion depends on the exact localisation inside the thalamus, the presence of extrathalamic lesions, the signal changes on different MRI sequences, the evolution of the radiological abnormalities over time, the history and clinical state of the patient, and other radiological and nonradiological examinations.

Publication types

  • Review

MeSH terms

  • Brain Infarction / complications
  • Brain Infarction / pathology
  • Brain Injuries / complications
  • Brain Injuries / pathology
  • Brain Neoplasms / complications
  • Brain Neoplasms / pathology
  • Calcinosis / complications
  • Calcinosis / pathology
  • Demyelinating Diseases / complications
  • Demyelinating Diseases / pathology
  • Encephalitis / complications
  • Encephalitis / pathology
  • Humans
  • Infections / complications
  • Infections / pathology
  • Magnetic Resonance Imaging
  • Metabolic Diseases / complications
  • Metabolic Diseases / pathology
  • Necrosis / complications
  • Necrosis / pathology
  • Neuroimaging*
  • Posterior Leukoencephalopathy Syndrome / complications
  • Posterior Leukoencephalopathy Syndrome / pathology
  • Status Epilepticus / complications
  • Status Epilepticus / pathology
  • Thalamic Diseases / complications
  • Thalamic Diseases / pathology*
  • Thalamus / pathology*