2020-52 / December 28
Contributors: Andrea Bakker, Kiril Trpkov
A male in his 80s presented with gross hematuria. On CT of the abdomen, there was a plaque-like thickening of the bladder wall measuring 7 x 6.5 x 2 cm with “fat stranding”. On cystoscopy, no distinct bladder mass was identified and a biopsy was performed.
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1. What is the correct diagnosis?
c. Post-transurethral resection granuloma
e. Normal bladder
2. In primary involvement of the urinary bladder, what is the most common protein involved?
a. Serum amyloid A protein (AA)
b. Transthyretin, wild-type (ATTRwt)
c. Immunoglobulin light chains (AL)
d. β2-microglobulin (AH)