Table 2: Histological findings.

Histopathological findings (H&E/Safranin-O staining)

Patient nr.

Involved Side

Medial specimens

Lateral specimens

1

L

Endochondral ossification, intra-cortical chondrocyte-rich areas, numerous irregular growth arrest line lines

Normal aspect

2

R

Endochondral ossification, intra-cortical chondrocyte-rich areas

Normal aspect, poor quality of specimen

3

L

Endochondral ossification, diffuse presence of intra-cortical chondrocytes, numerous irregular growth arrest line lines

Normal aspect, poor quality of specimen

3

R

Endochondral ossification (fibrodysplastic aspect), diffuse presence of intra-cortical chondrocytes, numerous irregular growth arrest line lines

Normal aspect

4

L

Endochondral ossification, intra-cortical chondrocyte-rich areas

Normal aspect

4

R

Endochondral ossification, prominent presence of subperiostally located areas of bone marrow

Normal aspect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Abbreviations: R: right; L: left.

The histological findings are described separately for each specimen after Mayer’s Hematoxylin (Dako) and additional staining with Safranin-O.