Highlights
Retroperitoneal schwannoma is a rare disease and needs a high index of suspicion to be diagnosed.
Generally, retroperitoneal schwannomas are known to be non-sensitive either to radiation or to chemotherapy.
Retroperitoneal schwannomas therefore, requiring complete surgical excision with negative margins.
In retroperitoneal schwannomas, due to the presence of multiple surgical approaches and different presentations, surgical access should be individualized.
Acute pancreatitis (AP) is a serious life-threatening condition, especially in high-risk patients. Limited data exist regarding early and late complications of immunosuppressant drugs as a cause of pancreatitis, especially Tacrolimus and Mycophenolate Mofetil (MMF), after transplantation. We report a rare case of late AP secondary to immunosuppressants’ synergistic effect after 5 years of renal transplant in an obese patient on day 4 after laparoscopic sleeve gastrectomy (LSG). We present a 41-year-old Saudi obese male patient, known to have multiple comorbidities and a renal transplantation twice, was on multiple medications, including Prednisolone, MMF and Tacrolimus for 5 years. On day 4 post-LSG, he developed severe epigastric abdominal pain and was diagnosed to have AP as a late complication of immunosuppressants’ synergistic effect. LSG is a common safe procedure, but complications related to medical illnesses or medications can occur. Careful review and sufficient knowledge of early and late complications are required.
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