Renal Mucinous Tubular and Spindle Cell Carcinoma
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Renal cell tumor characterized by tubular formations merging with bland spindle cells in a myxoid stroma.
This tumor accounts for less than 1% of all renal neoplasms.
It arises during the sixth decade of live.
There is a female predilection (M:F = 1:3).
There is no site predilection.
Partial or radical nephrectomy is the treatment of choice.
Only rare cases have metastasized to lymph nodes and have shown sarcomatoid dedifferentiation.
The tumor is solid, pale tan to yellow that may have slight focal areas of necrosis or hemorrhage.