Teratoid Wilms tumor is a rare variant of Wilms tumor composed predominantly of well-differentiated epithelial and/or mesenchymal heterologous elements. Like the classical Wilms tumor, this variant may also occur as a renal mass or may be found in extra renal locations. This tumor may be treated effectively by surgical resection; however, it generally fails to respond to chemotherapy. A review ...

Wilms' tumor is one of the most frequent malignant neoplasms in childhood. Advances in treatment modalities such as the combination of chemoradiation therapy with surgery have enhanced overall survival. However, recurrence of Wilms' tumor is still a problem. In this case, a 28-year-old female had experienced intermittent abdominal pain, and the computed tomography scan showed a huge pelvic mass...

The molecular genetic events involved in the etiology of granulosa cell, Sertoli cell, and Leydig cell tumors are unknown. The expression of the Wilms' tumor suppressor gene WT1 in granulosa and Sertoli cells prompted us to analyze this gene for mutations in 11 granulosa cell tumors, three Leydig cell tumors, and one Sertoli/Leydig cell tumor. Although most of these tumors express WT1 mRNA, non...

A 64-year-old man underwent left radical nephrectomy for stage III anaplastic Wilms’ tumor. He received adjuvant chemotherapy consisting of cisplatin and etoposide. Complete clinical response was achieved and maintained for 12 months. A systemic relapse after 1 year also responded to three more cycles of cisplatin and etoposide. Although cisplatinand etoposide-based chemotherapy was not used as...

Wilms' tumor or nephroblastoma is believed to arise from embryonic nephrogenic rests of multipotent cells that fail to terminally differentiate into epithelium and continue to proliferate. The WT1 tumor suppressor gene, a transcription factor controlling the mesenchymal-epithelial transition in renal development, is mutated in 10% to 15% of Wilms' tumors. This potentially explains the disordere...

Wilms tumor (WT) is the most common renal malignancy seen in pediatric patients. Although lungs are site of metastasis Wilms tumor, non-malignant pleural effusion has been infrequently reported. Here, we report a case an eleven-year-old female who presented with abdominal mass and progressive breathlessness. On further evaluation, she was found to have right-sided ipsilateral massive eff...