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EN4.{21-26,28-29} | Nose Airway and Rhinitis Disorders — PBL Case

CLINICAL SETTING

It is a Tuesday afternoon in the ENT OPD at a district hospital. Dr Anjali Nair, a final-year medical student on her ENT posting, is assisting the senior resident when three patients arrive within the same hour — each with nasal problems that turn out to be more complex than they first appeared. Patient 1 (Kamal, 13 years): A teenager brought in by his anxious mother after his third episode of heavy left-sided nosebleed in four months. He has also developed progressive difficulty breathing through his left nostril over the same period. His mother says a small 'growth' was noticed in his left nostril by a local doctor who tried to take a small biopsy — but it bled so severely that the procedure was abandoned and the family rushed to the district hospital. Patient 2 (Rekha, 34 years): A primary school teacher who has had uncontrolled sneezing, watery nasal discharge, and itchy eyes since childhood — 'worse every spring.' She tried a local pharmacy's decongestant nasal spray (oxymetazoline) and used it daily for 3 months with initial relief, but is now worse than before. She cannot function in class. Skin prick testing done at a private clinic shows 3+ reactivity to Dermatophagoides pteronyssinus and Cynodon dactylon (grass pollen). Patient 3 (Harish, 58 years): A retired lorry driver referred from medicine for evaluation of snoring and excessive daytime sleepiness. His wife says he stops breathing in his sleep multiple times a night. He has had three minor road accidents in the past year due to drowsiness. He is also hypertensive on amlodipine, and yesterday presented to the emergency department with a profuse posterior nosebleed requiring posterior nasal packing. Dr Anjali is about to present all three patients to the consultant. The consultant tells her: 'One of these has a condition you must never biopsy, one is using her treatment in the worst possible way, and one has two separate problems that share a common thread. Start thinking.'

Trigger 1: Unravel the Three Presentations

The consultant confirms: Kamal (13M) has a pinkish-red mass in the posterior left nasal cavity visible on nasal endoscopy. CT nasopharynx with contrast shows a 2.5 cm enhancing lesion in the left nasopharynx with bowing of the posterior wall of the left maxillary sinus. Kamal is afebrile; his haemoglobin has dropped from 12.4 to 10.1 g/dL over 4 months. Rekha (34F) has bilateral pale, smooth, mobile masses in both nasal cavities on anterior rhinoscopy. Nasal smear shows 32% eosinophils. Total IgE is elevated. Her nasal mucosa is bright red and markedly congested bilaterally — worse than would be expected from allergy alone. Harish (58M) is admitted to the ENT ward for management of posterior epistaxis. The packing has been in place for 36 hours. His blood pressure is 168/102 mmHg. Examination of the nasal septum reveals a C-shaped deviation to the left, with compensatory hypertrophy of the right inferior turbinate that is firm and non-shrinking after topical decongestion.

DISCUSSION POINTS

Kamal: What is the single most likely diagnosis given his age, sex, unilateral location, CT findings, and recurrent epistaxis? The local doctor attempted a biopsy — explain why this was dangerous and what the correct diagnostic and management pathway should have been.
Rekha: She has bilateral nasal polyps, eosinophilia on smear, and elevated IgE — but why is her nasal mucosa abnormally congested despite 3 months of oxymetazoline? Name this iatrogenic complication, explain its mechanism, and outline the step-down management plan.
Harish: Explain the difference between anterior epistaxis (Little's area) and posterior epistaxis (Woodruff's plexus) in terms of anatomical location, vessel supply, the clinical features that distinguish them (including why posterior bleeds are not visible on anterior rhinoscopy), and the management of each.
Harish also has hypertrophic rhinitis with a non-shrinking inferior turbinate. What does the 'decongestant test' reveal in hypertrophic rhinitis and why does it differ from allergic rhinitis?

Click to reveal Trigger 2: Management Plans and Complications (discuss previous trigger first!)

Trigger 2: Management Plans and Complications

Day 3 in the ward. Harish's posterior packing has been removed and haemostasis is maintained. His BP is now controlled. Nasal endoscopy confirms the bleeding was from the right posterior lateral nasal wall (Woodruff's plexus). A DNS to the left is confirmed; after a discussion of risks and benefits, Harish is scheduled for elective septoplasty and right inferior turbinoplasty in 4 weeks. Rekha is seen in OPD. The oxymetazoline has been stopped. She is started on intranasal mometasone furoate and loratadine. A discussion about allergen-specific immunotherapy (SCIT) is initiated for long-term control. Kamal's MRI nasopharynx confirms a 2.5 cm JNA with no intracranial extension (Andrews Stage I). Interventional radiology performs preoperative embolisation. He is scheduled for endoscopic resection under general anaesthesia in 5 days.

DISCUSSION POINTS

Harish is 58 years old. Compare septoplasty with submucous resection (SMR) — which does the surgeon prefer and why? What risk of SMR justifies choosing septoplasty?
What is the purpose of preoperative embolisation in Kamal's JNA? Which vessels are typically embolised? Why must surgery follow within 24–48 hours of embolisation?
Rekha's consultant recommends intranasal corticosteroid (INCS) as first-line pharmacotherapy rather than an oral antihistamine. Explain why INCS is superior to an oral antihistamine for her symptom profile (specifically nasal congestion). When would allergen-specific immunotherapy (SCIT) be indicated?
A fellow student suggests that Harish's turbinate problem can be managed with nasal cautery alone, without septoplasty. How would you respond? Does turbinate reduction address the primary problem?

Click to reveal Trigger 3: Outcomes, OSA, and the Broader Airway Picture (discuss previous trigger first!)

Trigger 3: Outcomes, OSA, and the Broader Airway Picture

Week 4. All three patients attend follow-up. Kamal's endoscopic JNA resection was successful with minimal blood loss after preoperative embolisation; no residual tumour on post-op MRI. He is scheduled for follow-up at 3 months (JNA recurrence rate ~10–30%). Harish undergoes septoplasty + right inferior turbinoplasty; nasal airway improved. However, his wife reports his snoring and witnessed apnoeas continue despite nasal surgery. His Epworth Sleepiness Scale score remains 17/24. The consultant refers him for polysomnography, which shows an apnea-hypopnea index (AHI) of 28/hour with oxygen desaturation to 84%. Rekha is dramatically better on mometasone and loratadine. She has been referred for SCIT sensitisation evaluation.

DISCUSSION POINTS

Harish's AHI is 28/hour — classify the severity of his OSA and name the first-line treatment. Why did nasal surgery (septoplasty + turbinoplasty) not resolve his OSA?
Explain what polysomnography measures. What is the Epworth Sleepiness Scale, and what score is clinically significant? What systemic complications of untreated severe OSA must Harish be counselled about (cardiovascular, metabolic, occupational)?
Kamal will need follow-up for possible JNA recurrence. What clinical signs would indicate recurrence, and how should he be monitored?
Reflecting on all three patients: identify one specific 'management error to avoid' in each case (JNA biopsy, oxymetazoline overuse, nasal surgery alone for OSA). Write a brief clinical safety statement that you would include in a handover note warning a colleague about each trap.

Group Task Assignments

Group 1: JNA Diagnosis and Management

Describe the pathognomonic features of JNA on CT (Holman-Miller sign) and MRI. Draw a simple diagram of the anatomical origin at the sphenopalatine foramen.
List the Andrews staging system for JNA (Stages I–IV) and explain how staging guides the surgical approach (endoscopic vs open).
Explain the principle and purpose of preoperative embolisation: which vessels are targeted, what happens if surgery is delayed beyond 48–72 hours, and what is the main risk if biopsy is attempted instead.

Competencies: EN4.21

Group 2: Rhinitis Differential Diagnosis Workshop

Create a comparison table of four types of rhinitis (allergic, vasomotor/autonomic, NARES, hypertrophic) across: triggers, IgE/SPT, nasal smear findings, turbinate response to decongestant, and first-line treatment.
Explain the mechanism of rhinitis medicamentosa from topical oxymetazoline — what happens to the nasal mucosal alpha-adrenoreceptors with prolonged use?
Design a 3-step management plan for a patient with allergic rhinitis who has been using oxymetazoline daily for 6 months.

Competencies: EN4.24, EN4.25, EN4.26

Group 3: Epistaxis Anatomy and Emergency Management

Draw a diagram of the nasal septum labelling Little's area (Kiesselbach's plexus) with its four arterial contributions. On the same diagram, mark Woodruff's plexus on the posterior lateral wall.
Write a step-by-step emergency protocol for (a) anterior epistaxis and (b) posterior epistaxis — including patient positioning, first-aid, silver nitrate cautery indications, anterior vs posterior packing, and escalation criteria.
When should arterial ligation or endoscopic sphenopalatine artery cautery be considered in posterior epistaxis?

Competencies: EN4.28

Group 4: Adenoids and OSA: Paediatric and Adult Airway Obstruction

List the clinical and radiological features of adenoid hypertrophy in a child. When is adenoidectomy indicated vs watchful waiting?
Explain why adenoidectomy alone may be insufficient if the child also has otitis media with effusion — what additional procedure is added and why?
For Harish's OSA: explain why correcting nasal obstruction (septoplasty + turbinoplasty) improves nasal airflow but does not cure OSA caused by retroglossal/retropalatal collapse. Name the STOP-BANG questionnaire criteria and how it predicts OSA risk.

Competencies: EN4.23, EN4.29

Group 5: Surgical Procedures in Nasal Airway Disease

Compare septoplasty and SMR: surgical technique, cartilage handling, risks, and complication profiles. Explain why SMR has been largely abandoned.
What is the minimum recommended age for elective septoplasty and why (nasal skeletal maturity)?
List the indications for inferior turbinate reduction surgery. What options are available (chemical cautery, submucosal diathermy, turbinoplasty, partial turbinectomy) and what are the pros/cons of each?

Competencies: EN4.22

Learning Issues

Research these questions and bring your findings to the discussion.

[EN4.21] What are the distinguishing features of ethmoidal polyps vs antrochoanal (Killian's) polyps in terms of laterality, origin, patient demographics, and management? What makes JNA a must-not-biopsy lesion and how is it diagnosed without tissue sampling?
[EN4.22] What are the clinical features and types of DNS? Compare septoplasty and SMR — techniques, cartilage handling, complications, and why septoplasty is preferred. What is the minimum age for elective septoplasty?
[EN4.23] What are the indications for adenoidectomy? How does adenoid hypertrophy cause otitis media with effusion, and why is combined adenoidectomy with grommet insertion the standard management for this complication?
[EN4.24] Describe the clinical features, pathophysiology, and management of allergic rhinitis per ARIA guidelines. Why is INCS the first-line treatment? When is allergen immunotherapy indicated? What is rhinitis medicamentosa and how is it managed?
[EN4.25] How is vasomotor rhinitis distinguished from allergic rhinitis and NARES on clinical and investigational grounds? What is the role of ipratropium bromide nasal spray in vasomotor rhinitis management?
[EN4.26] Describe the spectrum of chronic rhinitis: hypertrophic (turbinate fibrosis, non-shrinking on decongestant) vs atrophic (ozaena — wide nasal cavity, paradoxical obstruction, foetor, turbinate atrophy). How are they distinguished and managed?
[EN4.28] Where is Little's area (Kiesselbach's plexus) and which four vessels supply it? Where is Woodruff's plexus and which vessels supply it? How do anterior and posterior epistaxis differ in presentation and management?
[EN4.29] What is the apnea-hypopnea index and how does it grade OSA severity? What does polysomnography measure? Why is CPAP the first-line treatment for moderate-severe OSA and what are the systemic consequences of untreated OSA?