Renal Mucinous Tubular and Spindle Cell Carcinoma: A Report of Two Cases and Literature Review

Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare type of epithelial renal tumor considered as a low-grade neoplasm by the World Health Organization. Therefore, partial or radical nephrectomy may be curative whether in early stages. Less than a hundred of these tumors have been reported with gross and microscopic features, immunohistochemical profile and clinical findings. Here we report two cases of MTSCC with emphasis on the clinicopathological correlations according to postoperative findings. Both patients underwent a video-assisted resection of the kidney. No recurrence or metastasis was observed during the follow-up.