An Unusual Late Recurrence of Wilms Tumor

First-reported case of vaginal late recurrence of Wilms tumor treated with complete pelvic exenteration

Late relapses of Wilms tumour are extremely uncommon but still represent possible events. Even more rarely Wilms tumours present as extrarenal neoplasms, for which it could be difficult to diagnose and treat them promptly.We present a unique case of late recurrence of Wilms tumour 16 years after the primary diagnosis, with location in the gynaecological system. The relapse presented as a vaginal mass, and it gradually raised up to involve the majority of pelvic organs. We accurately studied the tumour extension, even realising a 3D preoperative reconstruction, and we managed to evaluate the patient with a multidisciplinary team involving general surgeons, urologists, gynaecologists and plastic surgeons. We finally decided for an extended surgical approach and realised a complete pelvic exenteration. Three months after surgery, the patient is in a good general condition, without major surgical complications and with no radiological signs of pelvic tumour relapse.

Cecal Volvulus following a Right Nephrectomy for Wilms' Tumor: Should We Need to Close the Lateral Peritoneum?

Wilms' tumor (WT) accounts for 90% of all pediatric renal malignant tumors. The most common postoperative complication based on the National Wilms' Tumor Study is small bowel obstruction. We report on a 2-year-old girl with postoperative bowel obstruction following a right nephrectomy for WT. The patient was reintervened 48 hours after surgery and a cecal volvulus was found. Here, we will describe possible causes of this postoperative complication and discuss management.

Inhibitory effect of STAT3 gene combined with CDDP on growth of human Wilms tumour SK-NEP-1 cells

To investigate the effects of signal transducer and activator of transcription 3 (STAT3) combined with cisplatin (CDDP) on the growth of human Wilms tumour (WT) SK-NEP-1 cell subcutaneous xenografts in nude mice and the possible mechanisms. Human WT SK-NEP-1 cells were subcutaneously transplanted to establish the BALB/c nude mice xenograft model. Mice were randomly divided into five groups: blank control group, adenovirus control group (NC group), STAT3 group, CDDP group and STAT3 plus CDDP group (combination group). Tumour volume and tumour weight were observed during the therapeutic process. The expression levels of STAT3, glucose regulatory protein 78 (GRP78) and BCL2-associated X protein (BAX) were evaluated by immunohistochemical analysis. Compared with the STAT3 group or CDDP group, the tumour weight and volume was significantly reduced in the combination group (P<0.05). No statistical significance was found in NC group compared with the blank control group (P > 0.05). Immunohistochemical analysis showed that STAT3, GRP78 and BAX protein levels in the combination group were significantly higher than those in STAT3 group and CDDP group (P<0.05). Exogenous STAT3 and CDDP may synergistically inhibit the xenograft tumour growth through up-regulation of BAX protein via GRP78.