Mucinous Tubular and Spindle Cell Renal Cell Carcinoma: About an Observation and Review of the Literature - Abstract
Mucinous tubular and spindle cell carcinoma is a rare tumor described in the 2004 WHO classification as a new entity with a relatively indolent behavior. We report a case of 60 year old man with a large left upper pole tumor. The patient was treated by left radical nephrectomy. The histologic findings confirmed that it was a tubulo-mucinous carcinoma and spindle cell grade I Furhman contours with non-infiltrating hilar invasion. Because of the favorable prognosis with this type of tumor, mucinous tubular and spindle cell carcinoma must be differentiated from papillary renal cell carcinoma, especially the variant with sarcomatoid dedifferentiation. Our case report of this rare entity ain to draw the attention of pathologists and clinicians to the importance of its diagnosis.