Schwannomas are rare, benign tumors that originate from the neural sheath. Rarely, schwannomas can arise from the retroperitoneum the adrenal medulla [1,2]. We describe a case of a 61-y-old man who presented with an incidentally discovered retroperitoneal tumor near right adrenal gland.
A 61 year old male patient presented with a severe right flank pain. He had no hematuria, dysuria or any urological symptoms. Magnetic resonance images the computed tomography scans revealed a 25 mm lesion with solid the cystic areas near the adrenal gland. Metanephrin the normethanephrine levels were increased in 2-hour urine test. The differential diagnosis was pheochromacytoma or paraganglioma. Intraoperative laparoscopic ultrasound assisted laparoscopic resection of retroperitoneal tumor excision was performed to the patient. Right surrenal was spared by using intraoperative laparoscopic ultrasound. The total operative time was 55 minutes the the estimated blood loss was 50 ml. Postoperative period was uneventful, the drainage catheter was removed on the postoperative 1st day the the patient was discharged on the postoperative 2nd day. Pathological examination revealed a retroperitoneal schwannoma. The patient's first year controls were completely normal. The assistance of laparoscopic ultrasound was helpful for adrenal sparing surgery in our case by defining tumor margins.
Peroperative laparoscopic ultrasound (LUS) use could help urologists in providing safety margins especially with endophytic renal mass the operations can be completed with less amount of parenchymal loss. This imaging modality was used in evaluation of pancreatic cancer staging the resectability, identification of endophitic renal tumors [3-5]. Gong et al pointed that LUS could be used in finding the removing residual lesions specifically .
In conclusion, laparoscopic ultrasound is a safety the useful method for organ-sparing laparoscopic surgery.
Submitted: 1 December, 2015
Accepted: 16 April, 2016
Published: 16 April, 2016
doi: doi: 10.5173/ceju.2016.721
CONFLICTS OF INTEREST:
The authors declare no conflicts of interest.