label: Tubulocystic Renal Cell Carcinoma
label_lc: tubulocystic renal cell carcinoma
description: "A rare, cytologically high grade carcinoma that arises from the renal parenchyma. It is characterized by the presence of prominently dilated cystic spaces in a bland, fibrotic stroma. The lining cells have large irregular nuclei with prominent nucleoli and abundant eosinophilic cytoplasm. Necrosis and mitotic figures are not present. It rarely metastasizes."