“…4) clinical features of other skin diseases, including psoriasis, and lysozyme, negative for CD45(LCA), CD45RO( UCHL-1),CD3, lichen ruber planus, annular erythema, rosacea, xanthomas, CD20(L-26),CD43( Leu-22), CD68( KP-1) and cytokeratin (12). urticaria or vasculitis (1,3,6,7). Finally, Sweet's syndrome A diagnosis of leukaemic vasculitis from neoplastic cell in ltration and pyoderma gangrenosum may also herald leukaemia (8)(9).…”