Das Schwannom der Niere

Abstract

Neurilemomas originate from the Schwann cells of nerve sheaths. They can occur ubiquitously as benign or malign variants. Renal neurilemomas are extremely rare. Imaging does not allow a certain diagnosis. Complete tumor resectioning is the only curative therapy. Effective conservative treatment is not known. Histological criteria of renal neurilemoma are: mesenchymal, spindle cell, capsulated tumor intensely positive to S-100 antiserum. Epithelial markers do not react.

Retroperitoneal Schwannomas of Renal and Pararenal Origin: Presentation of Two Case Reports

“…As with the intraoperative frozen section biopsy, a positive statement on the type of the tumor cannot usually be made. 11 Often the final diagnosis can only be reached after the surgery. For these reasons therapy equals the total surgical resection.…”