The Tonsils and Oropharynx
Acute tonsillitis
Acute tonsillitis can occur at any age but is most frequent in children under
9 years. Spread is by droplet infection. In infants under 3 years of age
with acute tonsillitis, 15% of cases were found to be streptococcal; the
remainder were probably viral. In older children, up to 50% of cases are
due to streptococcus pyogenes. It is commonest in winter and spring.
SYMPTOMS
1 Sore throat and dysphagia. Young children may not complain of sore
throat but will refuse to eat.
2 Earache—as a result of referred otalgia.
3 Headache and malaise.
SIGNS
1 Pyrexia is always present and may be high. It may lead to febrile convulsions
in susceptible infants.
2 The tonsils are enlarged and hyperaemic and may exude pus from the
crypts in follicular tonsillitis.
3 The pharyngeal mucosa is inflamed.
4 Foetor is present.
5 The cervical lymph nodes are enlarged and tender.
DIFFERENTIAL DIAGNOSIS
Infectious mononucleosis
Infectious mononucleosis (glandular fever) usually presents as severe
membranous tonsillitis. The node enlargement is marked and malaise is
more severe than expected from tonsillitis (Fig. 28.1). Diagnosis is confirmed
by lymphocytosis and within a week the monospot test becomes
positive.
Scarlet fever
Scarlet fever, now rare, is a streptococcal tonsillitis with added features caused by a specific toxin. It is characterized by a punctate erythematous
rash, circumoral pallor and a ‘strawberry and cream’ tongue.
Diphtheria
Diphtheria still occurs on rare occasions in the UK and should be considered
in recent travellers to India or the former USSR. It is of insidious onset
and characterized by a grey membrane (difficult to remove) on the tonsils,
fauces and uvula. Pyrexia is usually low and diagnosis is confirmed by
examination and culture of a swab.
Agranulocytosis
Agranulocytosis is manifested by ulceration and membrane formation on
the tonsils and oral mucosa.The neutropenia is diagnostic.
HIV
Patients with impaired immunity from HIV infection are particularly at risk
of pharyngitis and ulcerative tonsillitis.
TREATMENT OF ACUTE TONSILLITIS
1 Rest—the patient will usually prefer to be in bed.
2 Soluble aspirin or paracetamol held in the mouth and then swallowed
eases the discomfort. Remember that aspirin should not be given to children
under the age of 12 years because of the risk of Reye’s syndrome.
3 Encourage the patient to drink or she/he will easily become dehydrated.
4 Antibiotics in severe cases. Penicillin by injection followed by oral treatment
remains the treatment of choice. It is recommended that treatment
be continued for 10 days to reduce the risk of reactivation.
COMPLICATIONS
1 Acute otitis media (the most common complication).
2 Peritonsillar abscess (quinsy).
3 Pulmonary infections (pneumonia, etc.).
4 Acute nephritis IgA nephropathy.
5 Acute rheumatism.
Peritonsillar abscess (quinsy)
CLINICAL FEATURES
A quinsy is a collection of pus forming outside the capsule of the tonsil in
close relationship to its upper pole.The abscess occurs as a complication of
acute tonsillitis, but is more common in adults than in children.
The patient, already suffering from acute tonsillitis, becomes more ill,
has a peak of temperature and develops severe dysphagia with referred
otalgia. On examination, a most striking and constant feature is trismus; the
buccal mucosa is dirty and foetor is present.
The anatomy of the buccopharyngeal isthmus is distorted by the quinsy,
which pushes the adjacent tonsil downwards and medially.The uvula may be
so oedematous as to resemble a white grape.
TREATMENT
Systemic penicillin must be given without delay, and in very early cases with
‘peritonsillitis’ only, abscess formation may be aborted. If much trismus is
present and the presence of pus strongly suspected, incision is indicated, for
without this, spontaneous rupture may be long-delayed.
If the diagnosis is correct, the patient will spit out pus and some blood,
and the relief from former misery is immediate and dramatic.
In children, the drainage of a quinsy should be performed under general
anaesthesia; great skill and care are called for to avoid premature rupture of
the quinsy before the airway is safeguarded.
Following quinsy, it is conventional to carry out tonsillectomy 6 weeks
later. If there has been no previous history of tonsillitis this may not be necessary.
Recurrent acute tonsillitis
Most people will at some time experience acute tonsillitis, but some indi-viduals are subject to recurrent attacks, especially in childhood. Between
attacks the patient is usually symptom-free and the tonsils appear healthy. If
such attacks are frequent and severe, tonsillectomy is advisable. It is important
before arriving at such a decision to be sure that the attacks are truly
acute tonsillitis, with the features listed earlier. If there is doubt, it is helpful
to ask the patient (or the parents) to document the attacks over a period of
several months. If there are contraindications to operation, e.g. a bleeding
disorder, long-term prophylaxis with oral penicillin may reduce the frequency
and severity of attacks.
Tonsillar enlargement
As a general rule, the size of the tonsils is immaterial. Many parents are concerned
about the size of their offspring’s tonsils but can be reassured that no
treatment is necessary unless the child is subject to recurring attacks of
acute tonsillitis.
There is, however, a small number of children in whom the tonsils and
adenoids are enlarged to a degree that makes eating difficult and endangers
the airway. Such children are dyspnoeic even at rest, mouth breathe, snore
and are prone to episodes of sleep apnoea. Right heart failure may ensue.
A timely operation to remove the tonsils and adenoids from such a child
will result in a dramatic improvement in health.
Acute pharyngitis
Acute pharyngitis is exceedingly common, and probably starts as a virus
infection. It is often associated with acute nasal infections.
The symptoms consist of dysphagia and malaise and, on examination,
the mucosa is found to be hyperaemic.
As a general rule the treatment of acute pharyngitis should consist of
regular analgesics, such as aspirin 4–6-hourly. Unhappily, this complaint is
frequently treated by course after course of oral antibiotics, often aided and
abetted by antibiotic or antiseptic lozenges. As a result, the flora of the
mouth and pharynx may be disturbed completely and moniliasis ensues,
with the net result that after 6 weeks of treatment little or no progress has been achieved.
Chronic pharyngitis
Chronic pharyngitis produces a persistent though mild soreness of the
throat, usually with a complaint of dryness. Examination shows the pharynx
to be reddened and there may be enlargement of the lymphoid nodules on the posterior pharyngeal wall—granular pharyngitis.There may also be present
lateral bands of lymphoid tissue alongside the posterior faucial pillars.
Predisposing factors that should be looked for are:
1 smoking or excessive indulgence in spirit drinking;
2 mouth breathing as a result of nasal obstruction;
3 chronic sinusitis;
4 chronic periodontal disease;
5 exposure to harmful fumes, usually industrial;
6 use of antiseptic throat lozenges.
TREATMENT
If any of the causes listed are present, appropriate action will be beneficial. If
the lymphoid aggregates on the posterior wall are prominent, treatment by
diathermy or cryosurgery may help.
Malignant disease of the tonsil and pharynx
Carcinoma
Carcinoma will present as painful ulceration with induration of the tonsil,
fauces or pharyngeal wall. It is often accompanied by referred otalgia and
slight bleeding. Lymphatic spread to the upper deep cervical nodes is early.
Diagnosis is confirmed by biopsy of the tonsil.
Lymphoma
Lymphoma of the tonsil tends not to ulcerate, but produces painless
hypertrophy of the affected tonsil. Tonsillectomy as an excision biopsy is
indicated without delay in such a case.
TREATMENT
Treatment of carcinoma is by radical excision usually followed by external
irradiation, and of lymphoma by chemotherapy and/or radiotherapy. The
prognosis of carcinoma is poor but for lymphoma will depend on its cellular
nature, some types having a very good prognosis.