PMC4996579_01
CT scan demonstrating bilateral hydroureteronephrosis, perinephric stranding and bilateral obstructing ureteral stones.
fig-1.jpg
PMC4996579_01_fig-1.jpg
f1
A CT noncontrast scan of the abdomen and pelvis demonstrated mildly atrophic kidneys with bilateral hydroureteronephrosis, perinephric fat stranding, and suggestion of right forniceal rupture (Fig. 1).
Gross appearance of the stones.
fig-2.jpg
PMC4996579_01_fig-2.jpg
f2
The gross appearance of the intact stones is demonstrated in Figure 2.
FTIR analysis results. FTIR, Fourier transform infrared spectroscopy.
fig-3.jpg
PMC4996579_01_fig-3.jpg
f3
Aldrich Chemical HR FTIR Collection Series II (spectra #17943) was at the 96.1% level (Fig. 3). Additionally, a basic calcium phosphate crystal component was identified and appeared as a white powder within and on the surface of the stone sample.
(A) ConvaTec appliance. (B) The surface in contact with the patient's skin that was confirmed with FTIR to contain polyisobutylene.
fig-4.jpg
PMC4996579_01_fig-4.jpg
f4
Two specific areas (Fig. 4) of the Natura  ostomy appliance were characterized by FTIR and the composition of the adhesive side of the appliance matched with PIB (Fig. 4B).