Sheets of polygonal cells
Pale eosinophilic-clear cytoplasm
Round-ovoid nuclei with mild pleomorphism; inconspicuous mitotic activity
Focal hyaline cartilage; bands of osteoid with focal mineralization; prominent osteoclast-type giant cells
Sheets of polygonal cells
Pale amphophilic cytoplasm
Round-ovoid nuclei with vesicular chromatin and mild pleomorphism; inconspicuous mitotic activity
Focal hyaline cartilage; bands of osteoid with focal mineralization; prominent osteoclast-type giant cells
Sheets of polygonal cells
Pale eosinophilic-clear cytoplasm
Round-ovoid nuclei with vesicular chromatin and mild pleomorphism; inconspicuous mitotic activity
Focal hyaline cartilage, with osteoid; prominent osteoclast-type giant cells
Sheets of polygonal cells
Pale eosinophilic-clear cytoplasm
Round-ovoid nuclei with vesicular chromatin and mild pleomorphism; inconspicuous mitotic activity
Areas of hyaline cartilage; bands-sheets of osteoid with mineralization; prominent osteoclast-type giant cells
IHC: SATB2
Sheets of polygonal cells
Clear-eosinophilic cytoplasm
Hyperchromatic round-ovoid nuclei with mild pleomorphism; inconspicuous mitotic activity
Focal hyaline cartilage; bone trabeculae with variable mineralization; occasional osteoclast-type giant cells
Lobulated; sheets of polygonal cells
Clear-eosinophilic cytoplasm
Round-ovoid nuclei with mild pleomorphism; inconspicuous mitotic activity
Sheets of hyaline cartilage; areas of osteoid with variable mineralization; rare osteoclast-type giant cells