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PubMed1996

Immunoscintigraphy for the detection of brain abscesses.

The aim of this prospective study was to assess the diagnostic usefulness of a 99Tcm-anti-granulocyte antibody in the early differentiation of the aetiology of a ring-enhancing structure on computed tomography (CT) scans following neurosurgical intervention. In 26 patients (15 males, 11 females) aged 20-82 years with suspected intracranial infection, 29 SPET scans of the head were obtained 4-6 h following the intravenous injection of 555 MBq 99Tcm-anti-granulocyte antibody. The patients had antibiotic, antimycotic or corticosteroid therapy. The diagnosis was confirmed by surgery (19 cases) or subsequent CT/MRI (magnetic resonance imaging) scans and clinical follow-up (10 cases). The immunoscan was true-positive (abscess) in 6 (sensitivity = 100%), true-negative in 19 and false-positive in 4 (specificity 83%) cases. There was no obvious detrimental effect on the results due to the antibiotic, antimycotic or corticosteroid therapy. In conclusion, despite false-positive results, the 99Tcm-anti-granulocyte antibody is a useful tool in the early detection and exclusion of intracranial abscess after neurosurgical interventions.

Adult↗
PubMed1949

[Brain abscess].

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Brain↗
PubMedDate not supplied

[Multiple brain abscesses: a case report].

CASE REPORT: 10 days before admission a 45-year old female experienced general weakness, and T 38 degrees C. During that period she had no cardio-respiratory nor neurological complaints, and the temperature varied between 37.5 degrees C and 38 degrees C. Her medical history was unremarkable, without immunodeficiency. The day before admission she presented with left arm paresis and during the next day it progressed to paralysis. She had no headache. On admission the following diagnostic procedures were performed: the cranial CT scan showed two lesions (possibly meta lesions). Chest X-ray was normal. WBC=15x10(9)/L, ESR=90/120. On the second day following admission brain MRI showed multiple abscesses in both hemispheres, mostly in the gray/white junction. High doses of IV metronidasol, cephtriaxon and cipfloxacin were administered without obtaining specimens for micro-biological diagnosis. In next two days she developed coma, respiratory insufficiency and septic temperature. Brain surgery was not performed due to severe involvement of the brain with multiple abscesses. Repeated chest X-ray revealed bilateral pneumonia. A lethal outcome occurred on the third day, regardless of all efforts. Autopsy showed multiple brain abscesses as well as on the lungs and liver. A beta-hemolytic streptococcal infection was established. CONCLUSIONS: Prevention includes treatment of the infection source. The classic triad of headache, fever and focal deficit occur in less than 50% of patients. Even in such cases brain abscess must be reconsidered CT appearance of brain abscess is similar to that of neoplastic and other infectious and non infectious diseases--especially in the stage of early cerebritis. If the CT findings are not clear, MRI should be performed.

Brain Abscess↗