Tonsillitis and Peritonsillar Abscess Clinical Presentation
- Author: Udayan K Shah, MD; Chief Editor: Arlen D Meyers, MD, MBA more...
History
The patient's history determines the type of tonsillitis (ie, acute, recurrent, chronic) that is present.
- Acute tonsillitis
- Individuals with acute tonsillitis present with fever, sore throat, foul breath, dysphagia (difficulty swallowing), odynophagia (painful swallowing), and tender cervical lymph nodes.
- Airway obstruction may manifest as mouth breathing, snoring, sleep disordered breathing, nocturnal breathing pauses, or sleep apnea.
- Lethargy and malaise are common.
- Symptoms usually resolve in 3-4 days but may last up to 2 weeks despite adequate therapy.
- Recurrent streptococcal tonsillitis is diagnosed when an individual has 7 culture-proven episodes in 1 year, 5 infections in 2 consecutive years, or 3 infections each year for 3 years consecutively.
- Individuals with chronic tonsillitis may present with chronic sore throat, halitosis, tonsillitis, and persistent tender cervical nodes.
- Children are most susceptible to infection by those in the carrier state.
- Individuals with peritonsillar abscess (PTA) present with severe throat pain, fever, drooling, foul breath, trismus (difficulty opening the mouth), and altered voice quality (the "hot potato" voice).
Physical
Physical examination should begin by determining the degree of distress regarding airway and swallowing function. Examination of the pharynx may be facilitated by opening the mouth without tongue protrusion, followed by gentle central depression of the tongue. Full assessment of oral mucosa, dentition, and salivary ducts may then be performed by gently "walking" a tongue depressor about the lateral oral cavity. Flexible fiberoptic nasopharyngoscopy may be useful in selected cases, particularly with severe trismus. The images below depict the oral examination.
Examination of the tonsils and pharynx.
Oral mucosal examination. Physical examination in acute tonsillitis reveals fever and enlarged inflamed tonsils that may have exudates as seen in the image below.
Acute bacterial tonsillitis is shown. The tonsils are enlarged and inflamed with exudates. The uvula is midline. Group A beta-hemolytic Streptococcus pyogenes and Epstein-Barr virus (EBV) can cause tonsillitis that may be associated with the presence of palatal petechiae. Group A beta-hemolytic Streptococcus (GABHS) pharyngitis usually occurs in children aged 5-15 years.
Open-mouth breathing and voice change (ie, a thicker or deeper voice) result from obstructive tonsillar enlargement.
- The voice change with acute tonsillitis is usually not as severe as that associated with peritonsillar abscess (PTA).
- In peritonsillar abscess (PTA), the pharyngeal edema and trismus cause a hot potato voice.
Tender cervical lymph nodes and neck stiffness are observed in acute tonsillitis.
Examine skin and mucosa for signs of dehydration.
Consider infectious mononucleosis (MN) due to EBV in an adolescent or younger child with acute tonsillitis, particularly when tender cervical, axillary, and/or inguinal nodes; splenomegaly; severe lethargy and malaise; and low-grade fever accompany acute tonsillitis.
- Palatal mucosal erosions and mucosal petechiae of the hard palate may be observed.
An individual with herpes simplex virus (HSV) pharyngitis presents with red, swollen tonsils that may have aphthous ulcers on their surfaces. Herpetic gingival stomatitis, herpes labialis, and hypopharyngeal and epiglottic lesions may be observed.
Physical examination of a peritonsillar abscess (PTA) almost always reveals unilateral bulging above and lateral to one of the tonsils. Trismus is always present in varying severity. The abscess rarely is located adjacent to the inferior pole of the tonsil.
- Inferior pole peritonsillar abscess (PTA) is a difficult diagnosis to make, and radiologic imaging with a contrast-enhanced CT scan is helpful.
- Tender cervical adenopathy and torticollis (neck turned in the cock-robin position) may be present.
- Ipsilateral otalgia may be observed.
Causes
- Most episodes of acute pharyngitis and acute tonsillitis are caused by viruses such as the following:
- HSV
- EBV
- Cytomegalovirus
- Other herpes viruses
- Adenovirus
- Measles virus
- One study showing that EBV may cause tonsillitis in the absence of systemic mononucleosis found EBV to be responsible for 19% of exudative tonsillitis in children.
- Bacteria cause 15-30% of pharyngotonsillitis cases. Anaerobic bacteria play an important role in tonsillar disease.
- GABHS causes most bacterial tonsillitis.
- S pyogenes adheres to adhesin receptors that are located on the tonsillar epithelium.
- Immunoglobulin coating of pathogens may be important in the initial induction of bacterial tonsillitis.
- Organisms such as Mycoplasma pneumoniae, Corynebacterium diphtheriae, and Chlamydia pneumoniae rarely cause acute pharyngitis.
- Arcanobacterium haemolyticum is an important cause of pharyngitis in Scandinavia and the United Kingdom but is not recognized as such in the United States. A rash similar to that of scarlet fever accompanies A haemolyticum pharyngitis.
- Neisseria gonorrhea may cause pharyngitis in sexually active persons.
- A polymicrobial flora consisting of both aerobic and anaerobic bacteria is observed in core tonsillar cultures from cases of recurrent pharyngitis.
- Children with recurrent GABHS tonsillitis have different bacterial populations than do children who have not had as many infections. Other competing bacteria are reduced, offering less interference to GABHS infection.
- Streptococcus pneumoniae, Staphylococcus aureus, and Haemophilus influenzae are the most common bacteria isolated in recurrent tonsillitis.
- Bacteroides fragilis is the most common anaerobic bacterium isolated in recurrent tonsillitis.
- The microbiology of recurrent tonsillitis in children and adults is different: adults show more bacterial isolates, with a higher recovery rate of Prevotella species, Porphyromonas species, and B fragilis organisms , while children show more GABHS. Also, adults more often have bacteria that produce beta-lactamase.
- A polymicrobial bacterial population is observed in most cases of chronic tonsillitis, with alpha- and beta-hemolytic streptococcal species, S aureus, H influenzae, and Bacteroides species identified.
- One study, based on bacteriology of the tonsillar surface and core in 30 children undergoing tonsillectomy, suggests that antibiotics prescribed 6 months before surgery do not alter the tonsillar bacteriology at the time of tonsillectomy.[8]
- A relationship between tonsillar size and chronic bacterial tonsillitis is believed to exist. This relationship is based on both the aerobic bacterial load and the absolute number of B and T lymphocytes.
- H influenzae is the bacterium most often isolated in hypertrophic tonsils and adenoids.
- With regard to penicillin resistance or beta-lactamase production, the microbiology of tonsils removed from patients with recurrent GABHS pharyngitis is not significantly different from the microbiology of tonsils removed from patients with tonsillar hypertrophy.
- Local immunological mechanisms are important in chronic tonsillitis.
- The distribution of dendritic cells and antigen-presenting cells is altered during disease, with fewer dendritic cells on the surface epithelium and more in the crypts and extrafollicular areas.
- Study of immunologic markers may permit differentiation between recurrent and chronic tonsillitis. Such markers in 1 study indicated that children more often experience recurrent tonsillitis, while adults requiring tonsillectomy more often experience chronic tonsillitis.[9]
- A polymicrobial flora is isolated from peritonsillar abscesses. Predominant organisms are the anaerobes Prevotella, Porphyromonas, Fusobacterium, and Peptostreptococcus species; major aerobic organisms are GABHS, S aureus, and H influenzae.
- Radiation exposure may relate to the development of chronic tonsillitis. A high prevalence of chronic tonsillitis was noted following the Chernobyl nuclear reactor accident in the former Soviet Union.
- Overcrowded conditions and malnourishment promote tonsillitis.
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