Background: Spontaneous intracranial hypotension (SIH) is characterised by postural headache and low opening pressure at lumbar puncture without obvious cause. Cranial magnetic resonance imaging often shows small subdural collections without mass effect, dural enhancement, venous sinus dilatation, or downward displacement of the brain. The condition is thought to be benign. Objectives: To evaluate the incidence of subdural haematoma as a serious complication of SIH. Methods: A prospective survey of all cases of SIH presenting to a large neuroscience unit over a two year period. Results: Nine cases of SIH were seen. Four of these were complicated by acute clinical deterioration with reduced conscious level because of large subdural haematomas requiring urgent neurosurgical drainage. Conclusions: SIH should not be considered a benign condition. Acute deterioration of patients' clinical status may occur secondary to large subdural haematomas, requiring urgent neurosurgical intervention.

One hundred and sixty HIV-infected Greek patients were prospectively examined and the oral signs and symptoms were recorded. At the time of oral examination, 76 patients were asymptomatic seropositive, 47 were in ARC stage and 37 had AIDS. One or more oral findings were recorded in 90.6% of the patients while a total of 33 different lesions were observed. The more common oral lesions (highly suspicious) were candidiasis (61%), hairy leukoplakia (24%), periodontitis (19%), necrotizing gingivitis (11%) and Kaposi's sarcoma (12%). In addition some unclassified lesions or symptoms (xerostomia 26%, burning mouth syndrome 19%, patchy depapillated tongue 16%, hairy tongue 10%, exfoliative cheilitis 4%), were common while submandibular and cervical lymph node enlargement were found in 49% of the patients. Interestingly in 16 patients (10%) the suspicion of HIV infection was exclusively based on oral lesions. Our findings show that oral signs and symptoms are common and some times early manifestations of HIV infection and it is in association to those reported in previous studies.

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Our purpose was to investigate the human papillomavirus (HPV) type distribution using the Hybrid Capture 2 (HC2) Microplate assay in males. We tested a urethral swab from 550 HIV-negative males with genital warts and 64 HIV-negative males clinically free of genital warts, partners of HPV-infected females, using the HC2 Microplate assay. A perianal swab was also obtained from patients with perianal warts. In the first group, HPV DNA of any type was detected in 280 (50.9%) patients. Relatively few patients with urethral or perianal warts demonstrated a negative test (both P < 0.0001). Low-risk types were commoner, accounting for 60.0% of the HPV cases, high/intermediate-risk types accounted for 23.6%, while 46 men (16.4%) were infected with both types. Of 13 subjects (20.3%) of the second group who tested positive for HPV DNA, 61.5% were infected by low-risk types, 23.1% by high/intermediate-risk types and 15.4% had a dual infection. In conclusion, male partners of infected females and males with genital warts are predominantly infected by low-risk HPV types, but a substantial proportion is also or only affected by high-risk types.