Template:Ring-enhancing lesion DDX

Ring-Enhancing Lesion

Common Mnemonic: DR MAGIC

• Demyelination
• Radionecrosis/hematoma
• Metastasis
• Abscess (consider bacterial, fungal, parasitic)
• Glioma (and other primary neoplasms such as lymphoma)
• Infarction
• Contusion

HIV and ring-enhancing lesion(s)

• Toxoplasmosis v. lymphoma (see comparison of characteristics at Radiopaedia.org.)

Neoplasm

• Primary brain tumor
• Primary CNS lymphoma
• Metastatic disease

Infectious

• Pyogenic brain abscess
• Tuberculoma
• Toxoplasmosis
• Syphilis
• Neurocysticercosis
• Nocardiosis
• Cryptococcosis
• Aspergillosis

Neurologic

• Multiple Sclerosis
• Sarcoidosis
• Vasculitis
• Aneurysm
• Resolving hematoma
• Cerebral infarct
• Post-op changes