Circumscribed; hypocellular; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with elongated processes
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Abundant hyalinized collagenous stroma; abundant psammomatous calcification
Lobulated; hypocellular; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with elongated processes
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Abundant hyalinized collagenous stroma; irregularly interspersed psammomatous calcification
Circumscribed; hypocellular; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with elongated processes
Monomorphic ovoid nuclei with small nucleoli; inconspicuous mitotic activity
Abundant hyalinized collagenous stroma (calcification not present in this section)