PubMed · 5614484
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W O Van Meegroot. 1967-03-10. [Comments on brain abscess].. https://pubmed.ncbi.nlm.nih.gov/5614484/
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Two patients who developed what appeared to be a granulomatous reaction following muslin wrapping of unclipped aneurysms are reported. They presented with cranial nerve palsies and at operation were found to have an abscess around the wrapped aneurysms. In one of these two patients Staphylococcus epidemidis was isolated from the pus. This, together with further evidence from reported cases in the literature, would suggest that infection may play an additional role at least in some cases in the onset of a foreign-body granulomatous reaction seen following wrapping of aneurysms.
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BACKGROUND: An abscess involving an already present brain tumor is a rare occurrence. METHOD: Two cases of an abscess superimposed on a brain tumor are presented and discussed. The medical literature is reviewed, and all reported cases are compared to our own. RESULTS: Only 15 cases of an abscess associated with a brain tumor were found in the literature, to which we add 2 of our own. About 60% were intrasellar or parasellar tumors. The origin of such an abscess at this location is by direct extension of the germs from a contiguous infected sinus. Our 2 additional cases were away from the sinuses. One is an ependymoma of the posterior fossa, and the other, a falcotentorial occipital meningioma, each with a superimposed abscess. CONCLUSIONS: We propose an alternate route for the formation of an abscess in conjunction with a brain tumor.