Viral Pharyngitis
Themost frequent cause of viral pharyngitis is the “common cold,” or URI.
A multitude of viral pathogens may cause pharyngitis, including :
rhinovirus
influenza virus
parainfluenza virus
adenovirus
coxsackievirus
echovirus
Epstein-Barr virus (EBV)
reovirus
respiratory syncytial virus (RSV).
Rarely human cytomegalovirus (CMV), measles, and rubella may cause systemic viral
disease.
cold sore
Herpessimplex virus (HSV) commonly causes the well-known “cold sore.”
HSV can also cause exudative or nonexudative pharyngitis, mainly in older
children and young adults.
5.
Hand-foot-mouth disease
ismost commonly caused by coxsackievirus A16 and enterovirus
it is associated with high fever and malaise
vesicular eruptions in the mouth that cause oral and throat pain and a
maculopapular rash or vesicles on the palms of the hands, soles of the feet,
and buttocks.
Children with hand-foot-mouth disease are highly contagious and should be
kept away from other children until they are no longer symptomatic.
6.
Herpangina
Is causedby coxsackievirus
characterized by small vesicles with erythematous bases that become ulcers
and spread over the anterior tonsillar pillars, palate, and posterior pharynx
sometimes with associated cutaneous rash
7.
Treatment
Treatment strategiesfor patients with acute pharyngitis are based on
epidemiologic factors, signs and symptoms, and results of laboratory tests.
Rest, oral fluids, and salt-water gargling (for soothing effect) are the main
supportive measures in patients with viral pharyngitis
Analgesics and antipyretics may be used for relief of pain or pyrexia.
Hospitalization for intravenous hydration may be necessary when odynophagia
is intense.
Antibiotics do not hasten recovery or reduce the frequency of bacterial
complications. The risks of prescribing antibiotics in patients with viral
pharyngitis include the common side effects of antibiotics (diarrhea, rashes,
candidiasis, unplanned pregnancy secondary to oral-contraceptive failure) and
the rare occurrence of anaphylaxis.
8.
Epstein-Barr Virus
alsoknown as infectious mononucleosis
Is typically transmitted by oral contact.
EBV is especially common in adolescents; younger children tend to be
asymptomatic and to have chiefly abdominal complaints.
The mononucleosis syndrome consists of fever, general malaise, headache,
pharyngitis, dysphagia, and odynophagia.
Exam findings may include normal-sized or hypertrophic tonsils, palatal
petechiae, and large tender cervical lymph nodes.
Tonsils may have a green or gray exudate, which is indistinguishable from
streptococcal pharyngitis .
Rash is rare unless patients have been treated with amoxicillin or ampicillin.
Most patients have splenomegaly, and some have hepatomegaly
10.
Management ofEBV mononucleosis is based on symptoms.
Recovery may take weeks, and pain control, primarily with nonsteroidal
anti inflammatory drugs (NSAIDs), is important.
Antibiotics are not indicated unless treatment for concomitant bacterial
infection is required. β-lactam antibiotics, particularly amoxicillin and
ampicillin, are relatively contraindicated because of the risk of
precipitating a rash in up to some 30% of patients.
11.
The majorityof patients with mononucleosis-associated mild upper airway
obstructive symptoms or tonsillopharyngitis may be treated with oral or
parenteral corticosteroids alone.
If the obstruction is severe, a nasopharyngeal airway may be helpful; rarely,
tonsillectomy, intubation, or tracheotomy may be necessary
12.
Streptococcal Tonsillitis-Pharyngitis
GroupA β-hemolytic Streptococcus (GABHS) is the most common bacterial
cause of acute pharyngitis.
GABHS is implicated in up to 37% of all children who present with acute
pharyngitis.
Acute streptococcal pharyngitis is a disease of childhood and adolescence
with a peak incidence at 5 to 6 years of age
diagnosis
The diagnosisof acute pharyngitis cannot be made reliably on clinical grounds
alone because the manifestations of streptococcal and nonstreptococcal
pharyngitis overlap so broadly.
Accurate diagnosis is essential to limit transmission, improve recovery, reduce
complications, and avoid the use of antibiotics for viral illnesses.
If symptoms are strongly suggestive of a viral etiology—cough, rhinorrhea,
hoarseness, and oral ulcers—further testing is not Required
Throat culture is the diagnostic test of choice for GABHS infection
16.
Treatment
A 10-daycourse of penicillin or amoxicillin has traditionally been first-line
treat.
Recent data suggest that macrolides and cephalosporins may be more
effective as first-line therapy and that cephalosporins, clindamycin, and
amoxicillin/clavulanic acid are all preferred for penicillin failures for acute
GABHS infection
19.
Peritonsillar abscess
Peritonsillarabscess remains the most common deep infection of the head
and neck.
The condition occurs primarily in young adults.
A peritonsillar abscess is a polymicrobial infection, but Group A streptococcus
is the predominate organism.
Symptoms generally include fever, malaise, sore throat, dysphagia, and
otalgia.
20.
Physical findingsmay include trismus and a muffled voice (also called “hot
potato voice.
Drainage of the abscess, antibiotics, and supportive therapy for maintaining
hydration and pain control are the foundation of treatment
21.
Adenoid
The nasopharyngealtonsil, "adenoid pad," or "the adenoids," is a grouping of
lymphoid tissue located on the posterior wall of the nasopharynx at the level
of the soft palate.
The adenoids are present at birth and enlarge throughout childhood, reaching
peak size by age seven. In most individuals, they will regress in size during
puberty and may be nearly absent by adulthood. For this reason, adenoiditis
is commonly a problem in childhood and adolescence.
22.
Adenoiditis occurswhen there is inflammation of the adenoid tissue resulting
from infection, allergies, or irritation from stomach acid as a component of
laryngopharyngeal reflux (LPR).
Adenoiditis rarely occurs on its own and is more often involved in a more
extensive disease process such as adenotonsillitis, pharyngitis, rhinosinusitis,
etc.
Continual irritation may lead to adenoid hypertrophy, which is responsible for
many of the complications of adenoid disease, including Eustachian tube
dysfunction and recurrent acute otitis media.
Adenoiditis can be classified as acute or chronic.
Chronic adenoiditisis more often a polymicrobial infection and may include
anaerobic pathogens. Chronic adenoiditis frequently results from biofilm
development and may contribute to recurrent upper respiratory tract
infections in children. In most cases of pediatric rhinosinusitis, adenoiditis is
involved as well.
Allergies are believed to play a role in adenoiditis and subsequent adenoid
hypertrophy. Allergens inhaled through the nose come in contact with the
adenoid tissue; the adenoid will then proliferate in order to create a response
to allergens and produce IgA.
Chronic irritation from stomach acid in the setting of gastroesophageal reflux
disease (GERD) may also play a role in adenoiditis and adenoid hypertrophy,
particularly in infants and young children
25.
The patientmay also have a history of recurrent acute otitis media, chronic
nasal obstruction with mouth-breathing, chronic otitis media, sleep-
disordered breathing/obstructive sleep apnea, or GERD/LPR.
Physical findings include purulent rhinorrhea, post-nasal drip, nasal
obstruction, snoring, fever, mouth breathing, and halitosis.
Long-standing adenoiditis with subsequent adenoid hypertrophy in early
childhood can lead to the development of what is known as adenoid facies or
long-face syndrome. Enlarged adenoids block the nasopharynx and result in
obligate mouth breathing, which can lead to craniofacial abnormalities,
including a high-arched palate and retrognathic mandible
Adenoidectomy
In theabsence of symptomatic improvement after treatment with amoxicillin-
clavulanate or if the patient has multiple episodes of adenoiditis requiring
antibiotic treatment, referral to an otolaryngologist is warranted for further
evaluation and potential surgical intervention.
Depending on the circumstances, surgical procedures may include
adenoidectomy with or without tonsillectomy, myringotomy with
tympanostomy tube placement, or endoscopic sinus surgery.
If the patient meets the Paradise criteria for tonsillectomy, most
otolaryngologists will remove the adenoids at the same time to remove
another possible source of recurrent infections.
Similarly, most otolaryngologists will remove the adenoids if patients require
repeat tympanostomy and placement of pressure equalization tubes after the
first set due to the potential for adenoid hypertrophy to cause chronic
Eustachian tube dysfunction
Malignant tumors:
Theoropharynx is a common site for presentation of upper aerodigestive tract
malignancies.
the majority of which are squamous cell carcinoma (SCC) histopathologically.
SCC can vary from keratinizing (KSCC) to nonkeratinizing (NKSCC) and well-
differentiated to poorly differentiated.
31.
Symptoms
Dysphagia, foreignbody sensation or pain in the throat, oral bleeding,
referred otalgia (through sensory afferents of cranial nerves IX and X), or neck
mass
Risk factors, such as smoking and the consumption of alcohol, xenobiotic
exposure at the workplace and in the environment should be evaluated;
dietary and social habits are also worth evaluating.
32.
Physical exam:
patientsshould be carefully investigated with a focus on the tongue
(appearance and movement), tonsillar fossae, retromolar trigone, soft palate
(appearance and mobility), base of tongue, vallecula, and pharyngeal walls.
Examination should include inspection and palpation, especially of the tongue
base and tonsillar fossa; sensate testing; and an office endoscopy, either
flexible or rigid.
All cancer patients should undergo a complete head and neck investigation to
exclude synchronous cancers.
Bimanual palpation of the neck is mandatory to assess lymph node status and
possible regional metastatic spread.
33.
Kaposi sarcoma
Kaposisarcoma (KS) is a locally aggressive, growing neoplasm that can
present cutaneously, but it can also present as a mucosal lesion that shows
multiple patches and nodules.
it is associated with gamma-2 human herpesvirus 8 (HHV 8) infections
Isolated KS of the oropharynx is rare but can present in the soft palate or
tonsil
34.
KS canoccur as any of four variants:
indolent/sporadic: in elderly men in the Mediterranean region and Eastern
Europe;
endemic disease in Africans
iatrogenic in immunosuppressed patients, mainly after organ
transplantation
epidemic in association with human immunodeficiency virus (HIV) infection.
35.
Non-Hodgkin lymphomas
arefound in the palatine tonsils, palate, base of the tongue, and other
oropharyngeal sites.
Etiologic factors are unknown in most patients, although some lymphoma
patients might suffer from an immunodeficiency.
The lesions present as exophytic masses, submucosal swelling, and sometimes
ulcerations
Clinical symptoms can include fullness of the throat, dysphagia, snoring, and pain.
Systemic symptoms are rare.
36.
Nasopharyngeal Carcinoma
Themajority of patients with NPC are diagnosed with advanced disease.
The main factors believed to be associated with the development of NPC are
genetic and environmental factors as well as EBV.
Virtually all NPC patients are symptomatic at the time of diagnosis.
less than 1% of NPC patients are asymptomatic and diagnosed incidentally,
which may occur when imaging is performed for some other indication.
37.
The mostcommon presentation in NPC is that of a palpable neck Lump(due to
metastatic disease in the cervical lymph nodes.)
38.
Examination ofthe nasopharynx in NPC patients usually reveals an exophytic
mass that may occupy the whole postnasal space
39.
diagnosis
The goldstandard in the diagnosis of NPC is histologic confirmation by NP
biopsy.
This is performed transnasally under local anesthesia using rigid endoscopy.
The biopsy of the tumor is thereby performed under direct visualization.