Noculation of skin bacillary peliosis: related vascular lesion of liver and spleen treatment: erythromycin gross: moist, eruptive, cutaneous lesion micro: acute neutrophilic inflammation with vascular proliferation and prominent endothelial cells with nuclear atypia and mitotic figures; nuclear dust and granular material (bacteria) present; bacteria highlighted by silver stain dd: pyogenic granuloma, kaposi sarcoma, angiosarcoma   myopericytoma top also called perivascular myoid tumor usually adults, 60% male, median age 52 years, youngest case was age 10 affects skin (dermis or subcutis) or soft tissues of extremities, rarely head or trunk treatment: excision; only rarely recurs micro: thin walled vessels and concentric, perivascular arrangement of plump spindle to round myoxid cells; may have hemangiopericytoma-like areas; occasional prominent atypia and mitotic activity; rarely infiltrative; no giant cells ( am j surg pathol 2006;30:104 ) positive stains: alpha smooth muscle actin, h-caldesmon; rarely focal desmin dd: angioleiomyoma, myofibroma   low/intermediate grade vascular tumors giant cell angioblastoma top rare, congenital/neonatal soft-tissue tumor, infiltrative but slow growing; appears to be benign hand, palate, scalp treatment: surgery, interferon-alpha gross: ulcerated tumors infiltrating soft tissue and bone micro: solid, nodular, and plexiform proliferation of oval-to-spindle cells with striking, concentric aggregation around small vascular channels; cells resemble undifferentiated mesenchymal cells, fibroblasts, myofibroblasts, pericytes; also large mononuclear and multinucleate giant cells with histiocytic features positive stains: cd68 (large mononuclear and multinucleate giant cells) dd: giant cell fibroblastoma (cd34+, molecular rearrangements of #17 and #22), epithelioid hemangioendothelioma with osteoclast-like giant cells (factor 8+ cells that don’t resemble oval-spindle cells of giant cell angioblastoma, no concentric aggregation around vessels), plexiform fibrohistiocytic tumor (children/young adults, no onion-skin layering of tumor cells around vessels), myopericytoma (older age group, no giant cells), bacillary angiomatosis (positive special stains fo. generic viagra buying generic viagra on line much viagra 100mg buy generic viagra on line viagra discount viagra results review buy viagra online cheap free shipping Viagra 5 mg daily effectiveness viagra 5 mg vs 20 mg Buy viagra online ship to canada what does viagra cost per pill Cost of viagra at walmart pharmacy viagra 5 mg vs 20 mg generic viagra sold in united states online viagra sales generic viagra by mail discount viagra generic best price viagra prescription europe