腎細胞癌以外傷破裂的症狀來表現的非常少見，回顧文獻僅有四例報告，我們曾發現一位22歲女性病人因車禍外傷出血性休克被轉送到急診，電腦斷層掃瞄檢查發現左腎上部有疑似皮質撕裂傷及下部低密度腫塊，由於持續性休克病患接受緊急部腹探查，手術中發現並無皮質撕裂傷而是下部腫瘤破裂，而上部裂痕僅是腫瘤推移的效應，病理診斷證實為腎細胞癌合併出血，我們建議在探查腹部受傷的手術時應小心檢查雙側腎臟，尤其是腹部內並無任何明顯傷害時，更應考慮腎臟破裂之可能。

Renal cell carcinoma presented as a traumatic ruptured kidney is rare. A 22-yr-old female patient was referred to our emergency room on account of blunt abdominal trauma with hypo-volemic shock. The computerized tomography of the abdomen revealed a suspected cortical lac-eration over the upper pole and a lower-density tumor mass at the lower pole of the left kidney. Emergency laparotomy was performed due to persistent shock state. The operative findings dis-closed a ruptured tumor and no cortical laceration over the normal cortex of the left kidney. The pathology confirmed the diagnosis of renal cell carcinoma. We suggest that any exploration of suspected abdominal injury should use care in palpation of both kidneys, especially when facing the negative abdominal condition. (J urol R.O.C., 9:162-165,1998)