Intravesical instillation of bacillus Calmette-Guerin (BCG) after transurethral cancer resection is an approved part of the management of non-muscle invasive bladder cancer (NMIBC). The onset of polymyalgia rheumatica (PMR) and remitting seronegative symmetrical synovitis with pitting edema (RS3PE) following this immunotherapy is anecdotal. We report the case of a 69-year-old male pat... https://parisnaturalfoodes.shop/product-category/nanox9-next-gen/