Survey of Mast Cell Density in Transitional Cell Carcinoma
Transitional cell carcinoma (TCC) is the world's seventh most common tumor and forms more than 90% of urinary bladder tumors. Invasive tumors have had a poor prognosis, even with surgical treatment and chemotherapy. Some studies have found that an increase of mast cells in TCC is related to the tumor grade and its aggressiveness. This study investigated the relationship between mast cell density (MCD) and features of TCC (tumor stage, grade, prognosis, and recurrence).
Materials & Methods:
Fifty-one cases with TCC were selected, and MCD was determined by immunohistochemistry (IHC) and Giemsa staining. Mortality rate and tumor recurrence were recorded.
The MCD mean was higher in high-grade tumors than in low-grade tumors (in IHC).
Using mast cell tryptase and Giemsa, MCD has a positive correlation with tumor grade in TCC. Correlations between MCD, recurrence, prognosis, and tumor stage are probably caused by the effect of tumor grade (all with p <0.05).
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