Lobulated; hypocellular; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with long tapering processes
Ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Abundant myxoid stroma, with thin fibrous septa; delicate curvilinear vasculature
Occasional pseudolipoblasts
Lobulated; hypocellular; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with long tapering processes
Ovoid nuclei with mild-moderate pleomorphism; inconspicuous mitotic activity
Abundant myxoid stroma, with thin fibrous septa; delicate curvilinear vasculature
Frequent pseudolipoblasts
Lobulated; variable cellularity; spindle cells with vague fascicular pattern
Amphophilic cytoplasm with long tapering processes
Ovoid nuclei with moderate-marked pleomorphism, and occasional multinucleation; conspicuous mitotic activity
Prominent myxoid stroma with thin fibrous septa; delicate curvilinear vasculature; pseudolipoblasts
Lobulated; variable cellularity; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with long tapering processes
Ovoid nuclei with moderate-marked pleomorphism, and occasional multinucleation; conspicuous mitotic activity
Areas of myxoid stroma, with thin fibrous septa; delicate curvilinear vasculature
Lobulated; cellular; spindle cells with vague fascicular pattern
Eosinophilic cytoplasm with long tapering processes
Ovoid nuclei with mild-moderatepleomorphism; conspicuous mitotic activity
Rare foci with myxoid stroma and delicate curvilinear vessels
Lobulated; variable cellularity; spindle-epithelioid cells in fascicles and clusters
Amphophilic cytoplasm
Round-ovoid nuclei with prominent nucleoli, moderate pleomorphism; conspicuous mitotic activity
Areas of myxoid stroma; delicate curvilinear vasculature
Occasional pseudolipoblasts
Focal necrosis
Variable cellularity; spindle-epithelioid cells in fascicles and clusters
Amphophilic cytoplasm
Round-ovoid nuclei with mild-moderate pleomorphism; mitotic activity
Abundant myxoid stroma; delicate curvilinear vasculature
Occasional pseudolipoblasts