Our observation showed the necessity of careful examination of possible atypical pathogens in diagnostic materials from hemodialyzed and kidney transplant patients.
Progressive regression of cerebral arteriovenous malformations (AVMs) is a rare phenomenon that may occur spontaneously or after previous surgical or endovascular incomplete obliteration. We present two cases of AVMs occluded partially with Onyx followed by the unexpected cure of the lesions with the angiographic evidences as well as multiannual follow-up.
Our results show that acute and prolonged focal cerebral ischemia and reperfusion induce statistically significant increases in the oxidative activity of PMNs. The concentration of proinflammatory mediators (IL-1beta, TNFalpha) as well as ET-1 is also increased, indicating the important role of immune reactions in the development of damage to the brain following ischemia.
Recurrences of colloidal cysts after subtotal and partial removal do not occur very often, and the time of the recurrence may either be very long or it may not happen at all. Although we recommend complete removal of the cyst, this should not be pursued at the cost of incurring operative complications.
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