Abstract
The first case is a 50-year-old female. She was consulted to our hospital for further examination of right hydronephrosis that was shown by ultrasonography. Cystoscopy revealed tumorous lesion around the right orifice. Bladder tumor was suspected and transurethral biopsy of the bladder was performed. The second case is a 54-year-old man. He was consulted to our hospital because right hydronephrosis was shown by counterized tomography. A tumorous or stenotic lesion in the lower end of ureter was suspected. Cystoscopy revealed yellowish and thickened tissue in the trigonal area. Bladder amyloidosis was suspected and transurethral biopsy of the bladder was performed. The histopathological diagnosis indicated amyloidosis and systemic amyloidosis was excluded. Both cases were treated by occlusive dressing technique therapy using Dimethyl sulfoxide (DMSO) successfully.
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