BACKGROUND: Intracranial hypertension and obesity have been reported i
n recent studies of patients with periorbital venous vasculitis. These
findings indicate that obese patients should be investigated for sign
s of inflammation in serum and lumbar cerebrospinal fluid (CSF) pressu
re. PATIENTS AND METHODS: Twenty obese females, aged 27-68 years parti
cipated in the study of associated symptoms, signs of inflammation in
serum, intracranial hypertension and magnetic resonance imaging of the
brain (MR). Twenty randomly selected age- and sex-matched females wer
e also investigated for associated symptoms and MR as controls. RESULT
S: There were no statistically significant differences in associated s
ymptoms and diseases except for infertility (P < 0.05) between the two
groups. The values for orosomucoid, haptoglobin. IgG, IgM and tests f
or rheumatic and antinuclear factors were significantly increased in t
he obese group compared with normal values at the hospital. The lumbar
CSF pressure was increased above 20 cm water in 79% and above 25 cm w
ater in 42% in the obese patients. MR showed that the subarachnoidal s
pace in the obese patients were significantly smaller than in the cont
rols. CONCLUSIONS: Signs of inflammation in serum, intracranial hypert
ension and decreased subarachnoidal space were statistically significa
ntly more common in patients with obesity, than in controls.