Tubulocystic carcinoma


  • A renal carcinoma with predominantly tubulocystic structures

Clinical features


  • A rare variant of kidney epithelial neoplasm, <1% of renal cell carcinomas

  • Patients range in age from 30 to 80 years (mean age, 57.2 years)

  • Male predominance with an overall male-to-female ratio of 7:1

  • Rarely in patients with hereditary leiomyomatosis and renal cell carcinoma syndrome (HLRCC), especially when the tumor has “poorly differentiated” foci

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