Table 1.

Basic GPSM scoring algorithm

Parameter	Value
GLEASON SCORE	GS
PSA (μg/L)
0 ⇒ 3.9	P = 0
4 ⇒ 10	P = 1
10.1 ⇒ 20	P = 2
> 20	P = 3
SEMINAL VESICLES or LYMPH NODES
Negative	S = 0
Positive	S = 2
MARGINS
Negative	M = 0
Positive	M = 2
GPSM	GS+P+S+M