text: <unk>  is a type of kidney tumor.<unk>  is a rare disease that tends to affect children under 3 years of age, especially neonates. The male to female ratio is approximately 2 to 1.<unk>  may be classified according to pathology into three subtypes: classic, cellular, and mixed<unk> .<unk>  may be caused by translocation t(12:15)(p13;q25) that generates the fusion of ETV6/NTRK3 gene. On gross pathology, a solid nonencapsulated mass that often occurs near the renal hilum is the characteristic finding of<unk> . On microscopic histopathological analysis, spindle cell is the characteristic finding of classic<unk> ; whereas, plump cells with vesicular nuclei is the characteristic finding of cellular<unk> .<unk>  must be differentiated from rhabdoid tumor, clear cell sarcoma of the kidney, and Wilm's tumor. Symptoms of<unk>  include polyhydramnios, hematuria, and abdominal distension. Biopsy is helpful in the diagnosis of<unk> . The predominant therapy for<unk>  is surgical resection. Adjunctive chemotherapy may be required for cellular<unk> . Prognosis is generally excellent, and the 5-year survival rate of patients with<unk>  is approximately 96%.
option_0: Mesoblastic nephroma
option_1: Cystic nephroma
option_2: Medullary sponge kidney
option_3: Renal oncocytoma
option_4: Clear cell sarcoma of the kidney
option_5: Renal cyst
option_6: Medullary cystic kidney disease
option_7: Renal cell carcinoma