Nagano, Nahoko Department of Surgical Pathology, Shimane University Hospital, Japan.
Fukushima , Takafumi Department of Urology, Shimane University School Hospital, Japan.
Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare type of renal cell carcinoma (RCC). Classic type of MTSCC is characterized by small, elongated tubules lined by clear cuboidal or spindle cells with mucinous stroma. The neoplastic cells are always low-grade histological features. But, unclassified variants of MTSCC have also been reported, e.g., mucin-poor, papillary, high grade, and sarcomatoid variants.
We present the first case of simple cyst with mural nodule exhibiting the histological features of mucin-poor MTSCC. We should be aware that MTSCC can arise in a cystic renal lesion.
Urology Case Reports
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Faculty of Medicine