This is a case report of a 43-year-old pregnant woman, who in 26+0 was referred to a department of urology on suspicion of a kidney tumor. A CT scan of chest and abdomen showed a 7 cm tumor in the right kidney without signs of metastases. Biopsy revealed a clear cell renal cell carcinoma. The patient was treated in week 32+0 by a joint venture between a department of urology and a department of obstetrics with a midline incision caesarean followed by a right-sided open partial nephrectomy. The delivery of the baby was uncomplicated. The patient showed no signs of relapse in her control regiment after 1,5 years of observation.