Case report: Guillain-Barré syndrome following renal transplantation--a diagnostic dilemma.

Background: Guillain-Barre syndrome (GBS) is an acute polyneuropathy caused by an autoimmune response towards a foreign antigen, notably viral infections. It is characterised by a symmetrical ascending paralysis with treatment remaining largely supportive; however, plasma exchange or intravenous immunoglobulins can be used to shorten recovery time. Case Report: We describe a case of severe acute GBS in a patient post-renal transplantation. The 44-year-old gentleman's induction therapy consisted of methyl prednisolone and basiliximab, with subsequent tacrolimus and mycophenolate mofetil as immunosuppressive agents. Tacrolimus was discontinued immediately on suspicion of a temporal relationship with the patient's condition, and substituted with a combination of ciclosporin, mycophenolate mofetil and prednisolone. Due to extensive patient screening prior to transplant, negative virology/immunology and normal nerve biopsy findings, both tacrolimus and basiliximab may be indicated as causative agents. Conclusion: Immunosuppressive-induced GBS should be considered a differential diagnosis in patients on tacrolimus or basiliximab with acute-onset limb weakness, especially if recently commenced. Discontinuation of tacrolimus and initiation of plasma exchange for the treatment for tacrolimus-associated GBS may be beneficial.