Phlegmon; all are true except

Cellulitis (Phlegmon) → Diffuse swelling of face with no defined margins. → The tissue are tender, painful, hard to touch. → Pain, fever, malaise, exhaustion, all features are more aggressive. → It takes 3-7 days to develop. → Spreading factor of Duran and Reynals. → Rapidly spreading infection of subcutaneous tissue due to micro-organism which are capable to produce hyaluronidase which breakdown intercellular cementing substance hyaluronic acid. → Streptococci is more involved in causing cellulitis than staphylococci. → Streptocci produce enzymes such as : Streptokinase (fibrinolysin), hyaluronidase, and streptodornase. → These enzymes breakdown fibrin and connective tissue ground substance and lyse cellular debris. Thus facilitate rapid spread of bacteria along the tissue planes.