Phlegmon classification

1. Acute
2. Subacute

1. Mild
2. Average
3. Severe (with spreading to other location(s))

1. Superficial

• Cutaneous
• Subcutaneous
• Interstitial tissue
• Intramuscular

1. Deep

• Mediastinal
• Retroperitoneal

1. Single
2. Mixed (eg:spore and non-spore forming anaerobes)

1. Per continuitatem (through neighbouring tissues)
2. Hematogenous (through non-valvular veins like venous plexus of face eg: v. pterygoideus plexus → inflamation of veins (phlebitis) → thrombus formation in veins → embolization of thrombus into sinus venousus systems)
3. Odontogenous

1. Purulent phlegmon
2. Purulent-hemorrhagic phlegmon
3. Putrefactive phlegmon

1. With complications (disturbance of mastication, ingestion, speech, cardiovascular and respiratory system, peritonitis, lymphadenitis, loss of conscious if very severe, etc)
2. Without complication

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