Nests and sheets of small round-polygonal cells
Scant eosinophilic cytoplasm
Hyperchromatic round-ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Interspersed bands of hyaline cartilage; prominent thin-walled branching vasculature
IHC: SATB2
RNA-seq: HEY1-NCOA2 gene fusion
Sheets of small round-polygonal cells
Scant eosinophilic cytoplasm
Hyperchromatic round-ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Interspersed bands of hyaline cartilage
RNA-seq: HEY1-NCOA2 gene fusion
Sheets of small round-polygonal cells
Scant eosinophilic cytoplasm
Hyperchromatic round-ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Interspersed bands of hyaline cartilage
RNA-seq: HEY1-NCOA2 gene fusion
Sheets of small round-polygonal cells
Scant eosinophilic cytoplasm
Hyperchromatic round-ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Interspersed bands of hyaline cartilage
RNA-seq: HEY1-NCOA2 gene fusion
Sheets of small round-polygonal cells
Scant eosinophilic cytoplasm
Hyperchromatic round-ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Interspersed bands of hyaline cartilage
RNA-seq: HEY1-NCOA2 gene fusion