. Author manuscript; available in PMC: 2016 Jul 8.

Published in final edited form as: Mod Pathol. 2016 Jan 8;29(2):157–165. doi: 10.1038/modpathol.2015.148

Table 1.

Pathological parameters of discontinuously involved prostate biopsies (n=97)

Gleason Score	n (%)

6	35 (36%)
3+4	38(38%)
4+3	15(16%)
>7	9 (9%)

Maximum Tumor Involvement %

Median (range)	70% (20%–100%)
<50% Involvement, n (%)	22 (23%)
≥50% Involvement, n (%)	75 (77%)

IHC staining	n (%)

ERG⁻/SPINK1⁻	51 (52%)
ERG⁺/ERG⁺	20 (21%)
SPINK1⁺/SPINK1⁺	2 (2%)
Discordant staining between foci	24 (25%)

Pathological parameters for 97 prostate biopsy cores with discontinuous involvement assessed by dual ERG/SPINK1 immunohistochemistry (IHC). Gleason score, maximum % tumor involvement (inclusive of intervening benign tissue) and ERG/SPINK1 status (of the two foci) are provided for each discontinuously involved core.