Pathology: deep (aggressive) angiomyxoma

Hypocellular; spindle-stellate cells in loose fascicles

Eosinophilic cytoplasm with delicate tapering processes

Monomorphic ovoid nuclei; inconspicuous mitotic activity

Abundant myxoid stroma; wispy collagen fibres, particularly around vessels; ectatic small-medium vessels with occasional thickened walls

Mild cellularity; spindle-stellate cells in loose fascicles

Eosinophilic cytoplasm with delicate tapering processes

Monomorphic ovoid nuclei; inconspicuous mitotic activity

Abundant myxoid stroma; ectatic medium vessels; occasional "myoid bundles" surrounding vessels

IHC: desmin, estrogen receptor

Hypocellular; spindle-stellate cells in loose fascicles

Eosinophilic cytoplasm with delicate tapering processes

Monomorphic ovoid nuclei; inconspicuous mitotic activity

Abundant myxoid stroma; ectatic small-medium vessels; interspersed "myoid bundles", particularly surrounding vessels; interspersed mature adipocytes