Infiltrative; hypo-moderately cellular lobules of stellate-polygonal cells
Pale eosinophilic cytoplasm
Round hyperchromatic nuclei with mild pleomorphism; rare mitotic activity
Abundant hyaline cartilage matrix, with prominent myxoid degeneration
Infiltrative; hypo-moderately cellular lobules of stellate-polygonal cells
Pale eosinophilic cytoplasm
Round hyperchromatic nuclei with mild pleomorphism; rare mitotic activity
Abundant hyaline cartilage matrix, with areas of myxoid degeneration; necrosis
Infiltrative; moderately cellular lobules of stellate-polygonal cells
Pale eosinophilic cytoplasm
Raisinoid hyperchromatic nuclei with mild pleomorphism; rare mitotic activity
Abundant hyaline cartilage matrix; areas of myxoid degeneration; patchy necrosis
The grading of these neoplasms is admittedly subjective, and prone to sampling error. In a long bone this degree of cellularity and myxoid stroma warrants classification as grade 2.
Infiltrative; moderately cellular lobules of stellate-polygonal cells
Pale eosinophilic cytoplasm
Raisinoid hyperchromatic nuclei with mild pleomorphism; rare mitotic activity
Abundant hyaline cartilage matrix; areas of myxoid degeneration; patchy necrosis
Infiltrative; moderately cellular lobules of stellate-polygonal cells
Pale eosinophilic cytoplasm
Raisinoid hyperchromatic nuclei with mild pleomorphism; inconspicuous mitotic activity
Abundant hyaline cartilage matrix; prominent myxoid degeneration; stippled calcification
Infiltrative; variably cellular lobules of stellate-polygonal cells
Pale eosinophilic cytoplasm
Raisinoid hyperchromatic nuclei with mild pleomorphism; mitotic activity
Myxoid degeneration; patchy necrosis
The grading of these neoplasms is admittedly subjective, and prone to sampling error. In a long bone this degree of cellularity and myxoid stroma warrants classification as grade 2-3.