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Background Neurologic complications occur in about 30% of renal transplant patients, infections being the most common. We encountered three such patients and present our experience in the management of such cases. Clinical material Three cases of brain abscess in renal transplant recipients are reported. These patients presented from 9-60 months after the transplant. One patient had a pyogenic abscess; in the second the organism identified was Nocardia asteroides; in the third, a fungal infection was responsible. In two patients excision of the abscess was done, while in one repeated aspirations with intracavitary antibiotics were used. All received systemic antimicrobial therapy. Conclusions Central nervous system (CNS) complications, specifically infections, are quite common in renal transplant recipients, but reports of brain abscesses in these patients are very rare. The treatment options for such patients are discussed.

BACKGROUND Intracranial fungal granulomas are uncommon and their pathogenesis, clinical picture, and effectiveness of therapy remains unclear. METHODS Thirty-two cases were studied retrospectively in two groups: (1) Rhinocerebral group (22 cases) had a chronic paranasal sinus (PNS) disease with secondary involvement of skull base, cranial nerves, and/or brain. The granulomas were adherent to dura, firm, avascular, and tough, requiring a knife to cut. (2) Primary intracranial group (10 cases) had no detectable PNS lesion at initial presentation. The granulomas were soft, suckable, and contained pus or necrotic material. RESULTS Postoperative and overall mortality were 37.5% and 50%, respectively. Meningoencephalitis was the most common cause of death. Altered sensorium, pus in the granuloma, and/or severe brain edema were poor prognostic factors. All survivors except four have symptomatic residual or recurrent lesions. CONCLUSION Early diagnosis with MRI or stereotactic biopsy, radical surgery, and high dose and chronic suppressive chemotherapy may improve overall results in these cases.