This fascial space lies between the alar fascia and prevertebral fascia and allows rapid spread of infection inferiorly.
The danger space
These antibiotics are commonly used because they cover gram-positives and anaerobes.
What are amoxicillin-clavulanate or clindamycin
Patients often have cervical lymphadenopathy but classically have sore throat with an adherent, posterior pharyngeal pseudomembrane
Diphtheria
Acute lymphadenitis in an older child with poor dentition and dental caries.
What are anaerobic bacteria
This zoonotic infection from unpasteurized dairy can cause lymphadenopathy and systemic symptoms.
Brucellosis
This condition is a rapidly progressive cellulitis involving the floor of the mouth.
What is Ludwig angina?
This empiric IV antibiotic is commonly used for hospitalized pediatric lymphadenitis because it covers many typical head-and-neck pathogens.
ampicillin-sulbactam (Unasyn)
Bilateral cervical lymphadenopathy with cough and rhinorrhea suggests this etiology
What is viral infection (possibly adenovirus)
cute, unilateral, tender lymph node in a toddler with no dental disease.
Staphylococcus aureus or Streptococcus pyogenes
Known to be caused by hunters skinning rabbits, this bug is more often transmitted by
Tics
This muscle separates the sublingual space from the submandibular space and is key in determining spread of oral infections.
What is the mylohyoid muscle?
This physical exam finding indicates need for surgical intervention
What is fluctuance?
A child with bilateral lymphadenopathy, extreme fatigue but negative heterophile test likely has this virus.
What is CMV
Chronic, nontender lymph node with violaceous discoloration in a child.
MAC
This chronic infection is acquired after exposure to soil or moss with the fungus Sporothrix schenckii. Symptoms classically include nodular papules or ulcerations at the site of exposure and along the draining lymphatic chain.
Sporotrichosis