Milk of Urate Bulla - A new blister overlying the radial aspect of the second interphalangeal joint just distal to a preexisting tophus on his right hand (Panel A). The patient reported having had no trauma to the involved area. Examination of the fluid with polarized light microscopy showed sheets of negatively birefringent crystals consistent with monosodium urate (Panel B) #Clinical #Pathology #Gout #Urate #Bulla #Negatively #Birefringent #Microscopy #NEJM
