Tonsils, Adenoids, and Pharyngeal Abscesses

Compare viral and bacterial pharyngitis in terms of common pathogens, demographics, and complications.

Viral pharyngitis is very common and often linked to the common cold, caused by Rhinovirus (most common), Adenovirus, Coxsackie, Parainfluenza, Influenza, Corona, EBV, HIV, and CMV.

Bacterial pharyngitis is primarily caused by Group A Beta-hemolytic Streptococci (GABHS), causing 1/3 of cases in children (higher complication risk) versus only 10% in adults, and can lead to Rheumatic Fever and Glomerulonephritis.

Describe Fungal Pharyngitis, including risk factors, causative organism, and how to differentiate it from Diphtheria on exam.

Fungal pharyngitis is caused mainly by Candida albicans, with risk factors including immunocompromised states (e.g., chemotherapy), diabetes, antibiotic overuse, and denture wearing. It presents as white patches on the tonsils, soft palate, uvula, and pillars that can be easily scraped off without leaving a raw/ulcerated area (unlike diphtheria's bleeding membrane). Treatment is topical or systemic antifungals, not antibiotics.

Describe Herpangina, including its cause, appearance, seasonality, and treatment.

Herpangina is caused by the Coxsackie virus, presenting with fever, severe sore throat, and pain along with sores/blisters spread throughout the pharynx (most commonly the posterior oropharynx: soft palate, tonsils, uvula, and posterior pharyngeal wall). It usually occurs in summer and is treated symptomatically (soft nutritious diet, gargles), resolving without antivirals.

Compare Herpes Simplex Virus and Herpes Zoster Virus infections of the oral/pharyngeal region.

Herpes Simplex Virus (cold sores/fever blisters) causes fever, sore throat, and pain located on the lips, gums, and inner cheeks (anterior mouth), treated with antivirals like Acyclovir.

Herpes Zoster Virus (shingles) is caused by Varicella-zoster virus affecting sensory nerves, commonly the Trigeminal nerve, treated with early antivirals like Famciclovir; a key complication is Post-herpetic neuralgia causing persistent lancinating pain from dormant virus in the nerve.

Describe Infectious Mononucleosis, including its cause, transmission, key symptoms, and an important safety precaution.

Infectious Mononucleosis (glandular fever) is caused by Epstein-Barr Virus (EBV), transmitted via saliva (the "kissing disease"), common in teenagers and young adults.

Symptoms include extreme fatigue, sore throat, severe cervical lymphadenopathy, inflamed red tonsils with white exudates, and sometimes rash and hepatosplenomegaly; because the spleen is fragile and can rupture, patients must avoid contact sports.
Diagnosis is confirmed via serum EBV antibodies.

Describe the clinical manifestations of Diphtheria affecting the pharynx and its systemic risks.

Diphtheria, caused by Corynebacterium diphtheriae, is now rare in Egypt due to the DPT vaccine but is highly contagious via respiratory droplets. It forms a true membrane (thick white membrane over tonsils, soft palate, and uvula) that leaves a bleeding surface if wiped due to tissue necrosis, along with "Bull Neck" (extreme bilateral cervical lymphadenopathy) and stridor if it spreads to the larynx.
Systemic exotoxins can cause myocarditis, skin sores, and difficulty breathing; treatment is diphtheria antitoxin and antibiotics.

Explain why throat swabs are generally considered unhelpful in acute tonsillitis, and describe the key symptoms including referred otalgia.

Throat swabs take 4-5 days to return results, by which time an appropriately treated patient should already be recovering, so swabs are only indicated for non-healing infections or suspected fungal cause.

Key symptoms of acute tonsillitis include sore throat, fever, malaise, referred otalgia (ear pain via the Glossopharyngeal nerve which supplies tonsils, pharynx, and ear), odynophagia (painful swallowing, distinct from dysphagia which is due to mechanical obstruction), and high dehydration risk in children.

List and describe the four clinical types of Acute and Chronic Tonsillitis.

1) Acute Catarrhal: general inflammation without pus;
2) Acute Follicular: pus spots/follicles in tonsillar crypts indicating bacterial infection;
3) Acute Membranous: follicles merge into a pseudomembrane limited to the tonsils that wipes off easily without bleeding (unlike diphtheria);
4) Chronic Tonsillitis: shows anterior pillar redness without active pain, size inequality from fibrosis, cheesy epithelial debris expressible from crypts, and enlarged non-tender lymph nodes.

List the three major complications of Acute Tonsillitis and describe Rheumatic Fever specifically.

The three complications are:
Peritonsillar Abscess (Quinsy), Rheumatic Fever, and Acute Glomerulonephritis.
Rheumatic Fever is common in children aged 5-15, occurring 2-3 weeks after untreated GABHS infection, presenting with fever, polyarthritis (swollen painful large joints), and Rheumatic Chorea (involuntary movements), with long-term risk of heart valve damage; prevention is via tonsillectomy or long-acting penicillin injections.

List the six major indication categories for Tonsillectomy.

1) History of Peritonsillar Abscess;
2) Febrile Convulsions (surgery indicated even with low attack frequency since seizures are life-threatening);
3) Bilateral Tonsillar Hypertrophy ("Kissing Tonsils" causing airway obstruction and Obstructive Sleep Apnea);
4) Geographic context (OSA indications more common in USA, infective indications more common in Egypt);
5) Mechanical/hygiene issues (dysphagia, speech interference, Tonsilloliths causing halitosis);
6) Suspicion of malignancy (unilateral tonsil enlargement suggesting lymphoma or carcinoma).

Compare Cold Steel (Dissection) Tonsillectomy and Hot Tonsillectomy (Electrocautery) in terms of mechanism, pros, and cons.

Cold Steel Tonsillectomy uses traditional instruments to manually dissect the tonsil and capsule from the superior constrictor muscle, resulting in minimal collateral damage and less post-operative pain but higher intra-operative bleeding since there's no heat to seal vessels.

Hot Tonsillectomy uses monopolar or bipolar cautery (reaching 400-500°C) to cut tissue and seal vessels simultaneously, reducing intra-operative bleeding but causing high collateral tissue damage and increased post-operative pain.

Describe Coblation and Microdebrider Tonsillectomy techniques, including their indications.

Coblation uses plasma energy in a saline medium at low heat (40-70°C), theoretically causing less tissue damage and faster recovery.

Microdebrider Tonsillectomy uses a rotating shaver with suction, often for Partial (Intracapsular) Tonsillectomy that shaves tissue while leaving the capsule intact for faster recovery and less pain; it is used strictly for obstructive cases (OSA), not recurrent infections.

Differentiate between Extracapsular (Total) and Intracapsular (Partial) Tonsillectomy.

Extracapsular (Total) Tonsillectomy removes the entire tonsil and its capsule, exposing the superior constrictor muscle.

Intracapsular (Partial) Tonsillectomy removes the majority of the tonsil but leaves the capsule behind to protect the underlying muscle, which reduces post-operative pain.

Describe the three categories of post-tonsillectomy hemorrhage based on timing.

Primary hemorrhage occurs during the surgery itself.
Reactionary hemorrhage occurs within the first 24 hours, due to slipped ligatures or blood pressure spikes, usually requiring a return to the operating room.
Secondary hemorrhage occurs 5-10 days post-op, usually due to secondary infection of the tonsillar bed.
Hemorrhage overall is more common in adults than children and occurs in generally less than 5% of cases.

Describe the oropharyngeal and catastrophic complications that can occur after tonsillectomy.

Oropharyngeal complications include Uvular Edema (from high ligatures), Velopharyngeal Insufficiency (VPI, causing nasal regurgitation and nasal voice from soft palate damage), and Velopharyngeal Stenosis (scarring causing palate to stick to pharynx, usually from "hot" techniques).

Catastrophic complications include extremely rare but usually fatal Internal Carotid Artery injury, and most reported "tonsillectomy deaths" are actually due to anesthesia complications or unrecognized bleeding disorders like hemophilia.

Describe the normal post-operative healing process (White Eschar) after tonsillectomy.

White Eschar is a white coating that appears in the tonsillar bed 4-5 days post-operatively, often mistaken by parents or GPs as infection or pus.
In reality, it represents normal healing by secondary intention (comparable to a skin scab); it begins disappearing after 10 days, and the area looks like normal mucosa by 15 days.

Describe the anatomy, appearance, and natural history of Adenoids.

Adenoids are hypertrophy of nasopharyngeal lymphoid tissue located behind the nose, appearing endoscopically as a smooth, soft cushion with characteristic longitudinal ridges. They typically begin to shrink or atrophy by age 6-8 years.

List the features of "Adenoid Facies" and describe the systemic/respiratory effects of adenoid hypertrophy.

Adenoid Facies includes a dull, expressionless face, constantly open mouth, thick "hitched-up" upper lip, protruding upper incisors (overbite), receding chin, narrow nostrils (from disuse atrophy), and high arched palate.

Systemic effects include post-nasal drip causing chronic dry cough, CO2 retention leading to drowsiness, nightmares, and nocturnal enuresis (bed-wetting), and growth retardation from poor oxygenation.

List the indications for Adenoidectomy and describe the diagnostic methods used.

Indications include OSA/snoring (most common), recurrent otitis media (5+ times per year or 3+ times in two years), Otitis Media with Effusion persisting 3+ months despite treatment, and chronic sinusitis (adenoids act as a septic reservoir).
Diagnosis uses lateral X-ray showing the soft tissue mass, or nasal endoscopy allowing direct visualization and grading (Grade 1-4).

Compare the Cold (Curettage) and Hot (Suction Diathermy) techniques for Adenoidectomy, and list the complications.

Cold Technique uses an Adenoid Curette as a "blind" procedure performed by feel, which is fast but may leave residual tissue.

Hot Technique uses a suction tool that also cauterizes, allowing better coagulation and visualization via endoscopy. Complications include hemorrhage (most common, from incomplete removal, blood disorders, or wrong diagnosis like angiofibroma), cervical vertebrae injury, Eustachian tube injury, dental injury, VPI (especially with undiagnosed submucous cleft palate), and recurrence (especially if removed under 1.5-2 years of age since adenoids have no capsule).

Describe Intratonsillar Abscess, including its pathophysiology, symptoms, and treatment timeline.

Intratonsillar Abscess is the least dangerous pharyngeal space suppuration, caused by pus collection inside the tonsil due to obstruction of a tonsillar crypt, presenting with mild fever, pain, and dysphagia, and a yellowish, well-localized, soft cystic swelling on the tonsil surface.

Treatment involves immediate incision and drainage under local anesthesia plus antibiotics, with definitive tonsillectomy performed one month later to avoid recurrence and prevent spread of infection during active congestion.

Describe the clinical symptoms and signs of Peritonsillar Abscess (Quinsy), including Trismus and Torticollis.

Quinsy presents with high fever, headache, malaise, marked sore throat, halitosis, referred otalgia, Trismus (difficulty opening the mouth from muscle irritation), and marked dysphagia causing salivary dribbling.

Signs include torticollis with head tilting to the same affected side (from SCM spasm), unilateral tender jugulodigastric lymphadenopathy, soft palate swelling above and lateral to the tonsil, the tonsil pushed downward and medially, and the uvula edematous and deviated to the opposite side.

Describe the four sites for incision and drainage of a Peritonsillar Abscess (Quinsy), and what determines the ideal site.

The incision must be placed at a dependent (lowest) site for full drainage while avoiding blood vessels and nerves.
Site A is half a centimeter lateral to the junction of two lines (horizontal line from uvula base and vertical line from anterior pillar/last molar). Site B is midway on the horizontal line and is the most common, easiest approach.
Site C targets the most pointing/whitish area with visible pus underneath.
Site D is the Crypta Magna.

List the complications of untreated Peritonsillar Abscess (Quinsy).

Complications include pulmonary issues from sudden rupture and pus aspiration causing chest complications, lateral extension causing Parapharyngeal abscess, downward extension causing laryngeal edema and stridor, Internal Jugular Vein thrombophlebitis, and systemic pyemia/septicemia.

Describe the anatomical boundaries and contents of the Parapharyngeal space, and explain why this abscess is considered the most dangerous.

The Parapharyngeal (pharyngomaxillary/lateral pharyngeal) space forms an inverted cone in the lateral neck: superiorly bounded by the skull base, inferiorly by the hyoid bone, medially by the superior constrictor muscle, and laterally by the deep cervical fascia, parotid deep lobe, and pterygoid muscles.
It contains the carotid sheath structures (common, internal, and external carotid arteries) and the last four cranial nerves, making it the most dangerous pharyngeal space suppuration with potentially fatal complications.

Describe the three etiologic sources of Parapharyngeal Abscess and its most lethal complications.

Sources include pharyngeal spread from tonsils/quinsy, dental/odontogenic infections (e.g., wisdom tooth extraction), and otologic spread via Bezold's abscess (mastoid tip destruction). Complications include IJV thrombosis (Lemierre's syndrome, fatal), carotid artery rupture from erosion causing sudden death, cranial nerve IX-XII sequelae, and downward spread causing mediastinitis. Treatment is systemic antibiotics with external incision and drainage along the anterior border of the sternomastoid muscle, using a horizontal skin incision followed by vertical internal dissection.

Describe Acute Retropharyngeal Abscess, including its pathophysiology, age predilection, and why it stays unilateral.

Acute Retropharyngeal Abscess forms between the posterior pharyngeal wall and prevertebral fascia due to suppuration in the retropharyngeal lymph nodes of Henle.
It is most common in children because these nodes atrophy by age 4-5 in adults; in children infection spreads from adenoids/tonsils, while in adults it's linked to immunocompromise, foreign bodies, or intubation trauma.
The abscess remains unilateral because the buccopharyngeal and prevertebral fasciae adhere in the midline (pharyngeal raphe), preventing spread to the other side.

Compare the torticollis direction in Peritonsillar Abscess versus Acute Retropharyngeal Abscess, and describe the radiographic findings of retropharyngeal abscess.

In Peritonsillar Abscess, the head tilts toward the same affected side; in Acute Retropharyngeal Abscess, the head tilts toward the uninvolved side (note nuchal rigidity with tilting can also mimic meningitis).

Radiographic findings on lateral soft-tissue neck film include prevertebral soft tissue thickening greater than 50% of the vertebral body width, reversal of normal cervical spine curvature (from convex to straight/concave), and air in the prevertebral soft tissue.

Describe the treatment protocol for Acute Retropharyngeal Abscess, including anesthesia considerations.

Treatment requires incision and drainage performed perorally with a vertical incision, in a head-low (dependent) position with suction to avoid aspiration.
General anesthesia is contraindicated; local anesthesia or no anesthesia is used, especially in infants. Systemic antibiotics are given, and tracheostomy is indicated if there is airway compromise.

Differentiate Chronic Retropharyngeal Abscess from the acute form, including cause, presentation, and treatment.

Chronic Retropharyngeal Abscess is a "cold abscess" caused by tuberculosis of the cervical vertebrae (Pott's disease), presenting as a midline swelling (unlike the unilateral acute form) with insidious TB toxemia symptoms (weight loss, night sweats, mild fever), normal vital signs, vertebral tenderness, and painless cervical lymphadenopathy.

Treatment requires full anti-TB drug therapy plus surgical drainage strictly through the neck (never intraorally, due to fistula risk), using a horizontal incision along the posterior border of the SCM under general anesthesia, plus spinal stabilization if needed.

Describe Ludwig's Angina, including its etiology, mechanism of airway obstruction, and treatment priority.

Ludwig's Angina is a rapidly spreading cellulitis (not a true abscess) involving both submaxillary and sublingual spaces bilaterally, primarily odontogenic (70% of cases, especially 2nd/3rd lower molar extractions), also from penetrating floor-of-mouth trauma or mandibular fractures. Increasing edema raises and pushes the tongue backward against the palate, closing the airway within 12-24 hours of onset.
The treatment priority is always securing the airway first, followed by IV antibiotics and surgical exploration via a horizontal submental incision with vertical mylohyoid muscle division, releasing straw-colored exudate rather than true abscess fluid.