aetiology
Last reviewed 01/2018
Those in whom a direct causal link between venous outflow obstruction and CSF absorption is demonstrable:
- sagittal sinus thrombosis
- lateral sinus thrombosis usually secondary to mastoiditis
- intrathoracic mass lesion
- congestive cardiac failure
- following neck surgery
Idiopathic:
- minor head trauma
- endocrine disturbance:
- Addison's disease
- pregnancy
- menarche & menstrual irregularities
- Cushing's syndrome
- hypothyroidism
- hypoparathyroidism
- haematological:
- polycythaemia vera
- iron deficency anaemia
- infectious mononucleosis
- drugs:
- antibiotics such as tetracyclines, nalixidic acid or nitofurantoin
- oral contraceptives
- steroid withdrawal
- dietary:
- obesity
- excess or deficiency of vitamin A
- miscellaneous:
- Sydenham's chorea
- roseola infantum