HighlightsRetroperitoneal schwannomas (RS) are rare, benign tumors that originate in the neural sheath.RS can be misdiagnosed preoperatively, especially when they stick to other structures (the adrenal in our case).Complete surgical resection is the treatment of choice and open surgery is the safest option when we have big tumors.Histology and Immunohistochemistry confirm the diagnosis.
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