Enfermedad de Heck en niño nativo amazónico.

The incidence of bladder cancer increases rapidly, being attributed by 20-25% with some type of occupational exposure to aromatic amines. Our objective was to review and report a case to demonstrate the presence of risk factors, their incidence and their low recognition to present urothelial bladder tumors. 43-year-old male, saddler since the age of 10. With a history of painless macroscopic hematuria with the presence of clots at the end of diuresis since the age of 22, in whom he was diagnosed with an undifferentiated invasive muscle tumor of histopathological characteristics T2b, N0, M0. This article demonstrates the direct correlation between the exposure factors to carcinogenic agents with the early and aggressive presentation of the bladder tumor, being a key factor for recurrence and tumor progression. [ABSTRACT FROM AUTHOR]