Table 1

Immunohistochemical staining reaction for MMP-13 in normal cartilage and chondrocarcomas.

Samples

No of cases

Intensity of staining

Percentage of positive cells (%)

Negative -

Mild +

Moderate ++

Intense +++

Normal cartilage

2

2 (100%)

-

-

-

-

GI chondrosarcoma

4

3 (75%)

1 (25%)

-

-

0 %–4.2 %

GII chondrosarcoma

5

-

-

2 (40%)

3 (60%)

15.4%–30.8%

GIII chondrosarcoma

2

-

-

-

2 (100%)

37.6%–40.2%

(-) Negative : 100% of cells negative.

(+) Mild : 0% – < 25% of cells positive.

(++) Moderate : 25% – >50% of cells positive.

(+++) Intense : 75% – 100% of cells positive

Zyada and Shamaa Diagnostic Pathology 2008 3:26   doi:10.1186/1746-1596-3-26