Definition of Pseudotumor cerebri:

Pseudotumor cerebri is a process affecting the brain that appears to be -- but is not -- a tumor. It is often reversible.

Causes, incidence, and risk factors:

The cause for the condition is unknown.

Certain medicines can increase your risk for this condition. These medicines include:

• Non-steroidal anti-inflammatory drugs (NSAIDs)
• Tetracycline
• Nitrofurantoin
• Isotretinoin
• Minocycline
• Tamoxifen
• Nalidixic acid
• Lithium
• Steroids (starting or stopping them)

The following factors also increase your risk:

• Obesity
• Vitamin A (too much or too little)
• Cushingâ ' s disease
• Hypoparathyroidism
• Hypothyroidism
• Chronic kidney failure
• Anemia

The condition occurs more frequently in women than men, particularly in premenopausal obese women. It is rare in infants.