TABLE 2.
SURGICAL AND PATHOLOGICAL FINDINGS AND STONE TYPE
| Pt | Papillary deformity (%) | % Mean Papillary Surface Area | Stones Attached to Plaque | Hydro- nephrosis | Dilated BD | IMCD BD Deposits | Cortical Deposits | Stone Type |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 0.5 | No | +++ | ++ | 1±1 | Yes | COM (1) |
| 2 | 0 | 4.16 | No | + | + | 7±1* | No | UA (1) |
| 3 | 10 | 5.16 | No | 0 | ++ | 15±2* | No | UA (1) |
| 4 | 10 | 1.99 | No | 0 | +++ | 26±3* | No | UA (2) |
| 5 | 25 | 1.34 | Yes | +++ | + | 8±1* | No | COM (2) |
| 6 | 10 | 0.93 | No | 0 | ++ | 19±2* | No | UA + CA (6) |
| 7 | 0 | 11.61 | Yes | 0 | + | 9±1 | Yes | COM (1) |
% Papillary deformity refers to the fraction of papillae visualized at the time of surgery with deformity; % Mean papillary surface area, percent of papillary surface covered by white plaque; Stones attached to plaque, stones found attached to papilla on plaque at surgery; Hydronephrosis, degree of renal pelvic dilatation at time of PNL, from mild (+) to marked (+++); Dilated BD, degree of dilatation of Bellini ducts; IMCD/BD, inner medullary collecting duct/Bellini duct, mean number of deposits/mm2 of tissue;
denotes deposits that contained sodium acid urate and ammonium acid urate in addition to apatite; Cortical deposits, crystal deposits found in cortical collecting ducts; Stone type: COM, calcium oxalate monohydrate, UA, uric acid, (number analyzed); UA + CA, patient 6 had one pure UA stone, 2 stones with COM and UA, 2 stones with mixed calcium oxalate (CaOx) and calcium phosphate (CaP), and 1 with CaOx, UA and ammonium acid urate.