An essential factor of tumor cell survival is resistance to apoptosis cialis professional Notable findings include diffuse edema and erythema localized over the involved cheekbone or periorbital area; palpable cheek tenderness or tenderness percussion of the upper teeth; nasal or purulent drainage in the posterior pharynx; signs of extra sinus involvement orbital or facial cellulitis See Figure 2, orbital protrusion, abnormal eye movements, neck stiffness