분야
ppt-Deep neck infection-
General Consideration
Where is the origin?
Tonsillitis and pharyngitis - before antibiotic era
Poor dental hygiene and injection drug abuse - now
Others
Trauma, surgical trauma, esophageal perforation, laryngopyocele, infected branchial cleft, and thyroglossal duct cysts, thyroiditis
Cause severe illness and death
Surgery is often necessary
Antibiotics resistant bacteria
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Microbiology
Oral flora : more than 50 species of bacteria
Major pathogens
Anaerobic bacteria
Fusobacteria species
Pigmented bacteroides species
Peptostreptococci species
Streptococcus pyogenes
Aerobic gram-negative bacilli and staphylococci - uncommon
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Anatomy - lymphatic drainage
Lymphatic drainage
Occipital, mastoid, parotid, facial, submandibular, and submental lymph nodes circle the base of the head
Joined by the sublingual and retropharyngeal lymph nodes
Ultimately drain into the deep cervical chains along the carotid arteries
Potential route for spread of infection
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