Spindle-epithelioid cells in fascicles
Eosinophilic cytoplasm with frequent intracytoplasmic haemosiderin
Ovoid nuclei with occasional pseudonuclear inclusions and macronuceoli, and moderate pleomorphism; inconspicuous mitotic activity
Prominent ectatic vessels containing fibrin lining; mixed inflammatory infiltrate
IHC: CD34, desmin
Spindle-epithelioid cells in fascicles
Eosinophilic cytoplasm with frequent intracytoplasmic haemosiderin
Ovoid hyperchromatic nuclei with occasional pseudonuclear inclusions and macronuceoli, and moderate pleomorphism; inconspicuous mitotic activity
Prominent ectatic vessels containing fibrin lining; mild lymphoplasmacytic inflammatory infiltrate
IHC: CD34
Spindle-epithelioid cells in fascicles
Eosinophilic cytoplasm with frequent intracytoplasmic haemosiderin
Ovoid nuclei with occasional pseudonuclear inclusions and macronuceoli, and moderate pleomorphism; inconspicuous mitotic activity
Prominent ectatic vessels containing fibrin lining; mixed inflammatory infiltrate
IHC: CD34