Pathology: intramuscular myxoma

Lobulated and infiltrative; hypocellular; spindle-stellate cells with a loose fascicular pattern

Eosinophilic cytoplasm with delicate wispy processes

Monomorphic ovoid nuclei; inconspicuous mitotic activity

Abundant myxoid stroma with occasional cystic spaces; delicate thin-walled vessels; scattered aggregates of macrophages

Infiltrative; hypocellular; spindle-stellate cells with patternless distribution

Eosinophilic cytoplasm with delicate wispy processes

Monomorphic ovoid nuclei; inconspicuous mitotic activity

Abundant myxoid stroma, with small cystic spaces; delicate curvilinear vessels; scattered macrophages

Infiltrative; hypocellular; spindle-stellate cells with a loose fascicular pattern

Eosinophilic cytoplasm with delicate wispy processes

Monomorphic ovoid nuclei; inconspicuous mitotic activity

Abundant myxoid stroma, with occasional cystic spaces; delicate curvilinear vessels; scattered macrophages