Intracranial hypertension with no clear brain lesions and a favorable prognosis.

bubble_chart Diagnosis

1. Symptoms of intracranial hypertension such as headache, vomiting, and papilledema are present, but no focal signs or psychiatric symptoms are observed; no lesions are visible on auxiliary examinations such as CT, MRI, radionuclide imaging, or angiography; EEG may occasionally show some localized abnormalities.

2. Apart from increased pressure, cerebrospinal fluid shows normal findings on microscopy, generation and transformation.

3. The cerebral ventricles are patent, with normal size or slight enlargement.

4. The prognosis is good, with spontaneous recovery within weeks to months.

5. Possible disease causes include: (1) Endocrine disorders, such as pregnancy, obesity, menstrual irregularities or menarche, use or discontinuation of steroids, contraceptive use, hypoparathyroidism, chronic renal insufficiency, etc. (2) Drug effects, such as tetracyclines, excessive vitamin A, etc. (3) Infections, such as viral infections, subcutaneous nodules, paranasal sinusitis, otomastoiditis, etc. (4) Craniocerebral trauma. (5) Anemia. (6) Severe dehydration. (7) Some cases may involve clinically undetected grade I venous sinus thrombosis.

6. Conditions causing obstruction of extracranial venous return, such as neck masses, mediastinal tumors, chronic cardiopulmonary obstructive diseases, etc., should be ruled out.

bubble_chart Treatment Measures

Reduce intracranial pressure, control cerebral edema, and treat any underlying primary disease.