Laparoscopic removal of retroperitoneal schwannoma in renal hilum: a case report

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2024年8月15日

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Shotaro Yamamoto,
Takashi Kawahara,
Tomoki Saito,
Takahiro Hanai,
Teppei Takeshima,
Koki Maeda,
Kazuhide Makiyama,
Hiroji Uemura

摘要

Background

Schwannomas in the renal hilum are rare among retroperitoneal tumors. However, the possibility of malignant findings cannot be ruled out, and surgery is often indicated. This case was expected to be difficult to remove laparoscopically because the tumor was sandwiched between the arteriovenous veins of the renal portal. Sometimes, the tumor should be resected with a conservative approach to the kidney to preserve the renal function.

Case presentation

Our patient was a 51-year-old Asian-Japanese man who was referred to our department for a retroperitoneal tumor in the renal hilum. Since malignancy could not be ruled out due to its size (45 × 48 × 55 mm) on imaging, the tumor was excised laparoscopically. Histopathology revealed schwannoma.

Conclusions

We herein report a case in which a renal hilar tumor between renal arteriovenous vessels was successfully resected laparoscopically.