Tiselius et al classified kidney stones based on size, nature and location. The size of a stone correlates with the difficulty in dissolution. The authors are from Huddinge University Hospital in Stockholm, Sweden.
Patient selection: urolithiasis
Parameters:
(1) number and size of stones within the kidney
(2) staghorn calculus (partial or complete)
(3) stone in the ureter
Ureter |
Staghorn |
Number |
Diameter |
Type |
Y |
NA |
NA |
NA |
F |
N |
Y |
NA |
NA |
E |
N |
N |
1 |
<= 5 mm |
A |
N |
N |
1 |
6 to 20 mm |
B |
N |
N |
1 |
21 to 30 mm |
C |
N |
N |
1 |
>= 31 mm |
D |
N |
N |
2 or 3 |
<= 10 mm |
B |
N |
N |
2 or 3 |
11 to 20 mm |
C |
N |
N |
2 or 3 |
> 20 mm |
D |
N |
N |
>= 4 |
<= 10 mm |
C |
N |
N |
>= 4 |
> 10 mm |
D |
Ureter Location |
Subtype |
proximal |
Fp |
mid |
Fm |
distal |
Fd |
Specialty: Nephrology, Clinical Laboratory
ICD-10: ,