LXN and angiosarcoma: Among the latter, there were 20 hemangiosarcoma, 4 indolent B-cell lymphoma, 2 stromal sarcoma, 1 metastatic adenocarcinoma and 1 anaplastic round cell tumor staining negative for CD3, CD20, IBA-1, MUM-1, CD11d by immunohistochemistry (IHC).