Brain mass lesion (summary)

Dr Jeremy Jones et al.

Brain mass lesions are a broad collection of pathological processes that result in changes on brain imaging (usually CT or MRI). They are a very disparate group of conditions ranging from infection (abscess) to brain tumours (benign and slow-growing, metastatic or primary high-grade brain tumour). A number of features of a brain lesion can help to narrow the differential.

Reference article

This is a summary article; we do not have a more in-depth reference article.

Summary

  • pathophysiology
    • brain mass lesions are a very broad group of conditions
      • infection (abscess)
      • neoplastic
        • brain metastases
        • primary brain tumour (benign/slow growing to high-grade and rapidly progressive)
  • role of imaging
    • is there a mass lesion?
    • what's the likely cause?
    • are there complications (e.g. mass effect)?
    • will further imaging (or other tests) be helpful?
  • radiographic features
    • when making an assessment of a brain lesion, use these questions:
      • is the lesion solitary?
      • is the lesion definitely in the brain (intra-axial)?
      • is there oedema around the lesion?
      • is there associated mass effect?
      • is there clinical history or previous imaging that helps in the diagnosis, e.g. history of cancer
Medical student radiology curriculum
Share article

Article information

rID: 55162
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.