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Medical Science Monitor Basic Research


A 27-Year-Old Primigravida with a Right Renal Cell Carcinoma Removed at 30 Weeks of Gestation by Robot-Assisted Retroperitoneoscopic Partial Nephrectomy

Challenging differential diagnosis, Unusual setting of medical care, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)

Moritz Völler, Walid Mahmud, Stefan Vallo, Markus Grabbert, Patricia John, Wael Y. Khoder

Germany Department of Urology, Darmstadt Hospital, Hessen, Germany

Am J Case Rep 2021; 22:e927164

DOI: 10.12659/AJCR.927164

Available online: 2021-03-12

Published: 2021-04-18


BACKGROUND: Large renal tumors during pregnancy are rare findings (0.07-0.1%). Current guidelines recommend surgical removal. This surgery should be carefully planned in an interdisciplinary team and involves special risks for mother and fetus. This report describes a case of a 27-year-old primigravida woman with a right renal cell carcinoma involving the lower pole of the kidney, which was removed at 30 weeks of gestation by robot-assisted retroperitoneoscopic partial nephrectomy (RARPN).
CASE REPORT: The patient was referred by the treating obstetrician with a newly diagnosed right lower pole renal mass of 6×4 cm in greatest diameter extending deeply into the parenchyma. No metastasis or enlarged lymph nodes were described in subsequent magnetic resonance tomography. Clinical and laboratory examinations documented a healthy mother and fetus. A right-sided RARPN was advised and planned by an interdisciplinary team of treating physicians (gynecologists, oncologists, and urologists). The surgery was conducted under general anesthesia with an obstetrician on stand-by. Surgery was performed without any complications (operation time 95 min, renal-ischemia time 15 min, and negligible blood loss) and histopathology confirmed the diagnosis of a chromophobe renal cell carcinoma. Further follow-up consultations showed regular wound healing and normal progression of pregnancy, and the patient gave birth to a healthy child at term. Follow-up examinations of the patient were uneventful.
CONCLUSIONS: This case shows that RARPN can be a safe and effective surgical procedure for partial nephrectomy during pregnancy, where surgery is performed in a specialist center and by an interdisciplinary experienced surgical team. It seems to offer advantages and better risk profile over the laparoscopic approach.

Keywords: Carcinoma, Renal Cell, Laparoscopy, Pregnancy Trimester, Second, Robotics