Pathology: pleomorphic hyalinizing angiectatic tumour of soft parts
Pleomorphic hyalinizing angiectatic tumour
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
Pleomorphic hyalinizing angiectatic tumour
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
Pleomorphic hyalinizing angiectatic tumour
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