Challenger Medical Education Blog

Most Missed Question in ABIM Prep – Rhinosinusitis with Nasal Polyps

Written by Challenger Corporation | Oct 28, 2025 3:01:47 PM

What is the Most Missed Question in Internal Medicine Exam Prep This week?

Key takeaway: In adults, chronic rhinosinusitis with nasal polyps frequently coexists with asthma and aspirin/NSAID sensitivity—recognize the AERD (Samter) triad and expect anosmia.

 

Question - Aspirin Triad

A 40-year-old man presents to you with what he calls a "cold," which he says has lasted for many months followed by the gradual onset of blockage of his right nasal passage. He has had asthma for about 10 years, which he says occurs unpredictably. He uses aspirin and, on occasion, nonsteroidal anti-inflammatory drugs. He tells you that recently his sense of smell has decreased.

Upon examination, he has a pronounced nasal voice. Vital signs are normal. Examination of the right nasal passage with a speculum reveals a gray, cyst-like mass protruding into the nasal cavity. The remainder of the head, eyes, ears, nose, and throat examination is normal.

Which of the following may be found in patients with chronic sinusitis?

Answers:

A. asthma and nasal polyps
B. asthma and eosinophilic pneumonia
C. hyperplastic eosinophilic sinusitis and aspirin sensitivity
D. asthma and gastro-esophageal reflux disease (GERD)

 

This item is commonly missed because it blends clinical clues to chronic rhinosinusitis with nasal polyps (CRSwNP)—nasal obstruction, hyponosmia/anosmia, pale gray polypoid tissue—with asthma and NSAID exposure, priming you to recall the classic triad of aspirin-exacerbated respiratory disease (AERD). Many examinees overthink the stem and choose a more esoteric pairing (e.g., “hyperplastic eosinophilic sinusitis and aspirin sensitivity”) instead of the board-favored association: asthma plus nasal polyps.

On exam day, prioritize pattern recognition: adult-onset or worsening asthma, recurrent nasal polyps, and NSAID sensitivity co-cluster (AERD/Samter triad). Contemporary guidance (European Position Paper on Rhinosinusitis and Nasal Polyps, EPOS 2020; Global Initiative for Asthma, GINA 2024) emphasizes that CRSwNP is a distinct endotype often linked to type 2 inflammation and that anosmia is particularly characteristic in CRSwNP.

 

Why This Question Is Often Missed

  • The stem tempts a “pathology-word salad” choice (hyperplastic eosinophilic sinusitis) over the simpler, canonical association tested on boards: asthma + nasal polyps.
  • Test-takers conflate common comorbidities (e.g., asthma + GERD) with causally or phenotypically linked disease (AERD).
  • Anosmia is under-recognized as a strong CRSwNP clue, pushing examinees away from the AERD triad.

 

What the Distractors Indicate

Option What It Tests / Implies Why It’s Wrong Here
asthma and nasal polyps Recognizing CRSwNP’s classic association and AERD pattern Correct: CRSwNP commonly coexists with asthma; NSAID sensitivity is frequent (AERD).
asthma and eosinophilic pneumonia Overgeneralization of “eosinophilia” in airway disease Eosinophilic pneumonia is not a typical comorbidity of chronic sinusitis/CRSwNP.
hyperplastic eosinophilic sinusitis and aspirin sensitivity Anchoring on histopathologic jargon and NSAID clues Mixes a histologic subtype term with association; boards expect the clinical triad recognition (polyps + asthma ± NSAID sensitivity), not this pairing as the best answer.
asthma and GERD Common but nonspecific comorbidity GERD may coexist with asthma but does not define CRSwNP or explain anosmia/polyps.

 

Internal Medicine High-Yield Pearl

Adult with nasal obstruction, anosmia, pale polyps, asthma, and NSAID exposure = think CRSwNP with AERD; choose “asthma + nasal polyps.”

 

Core Learning Objectives

1. Recognize the clinical phenotype and associations of CRSwNP, especially the AERD (Samter) triad: asthma, nasal polyps, and NSAID sensitivity.
2. Distinguish CRSwNP from look-alikes and select appropriate first-line evaluation/management steps per EPOS 2020 and GINA 2024.


 

The Exam “Test Trick” at Play

The test writers juxtapose a high-utility clinical association (asthma + nasal polyps) with a more esoteric, jargon-heavy distractor. Boards reward identification of the straightforward triad rather than overfitting to path terms.

Additional ABIM Exam Practice Questions and Remediation for CRSwNP/AERD

Internal Medicine Practice Question 1 — Classic triad clue

A 38-year-old with adult-onset asthma develops progressive nasal obstruction and loss of smell after taking ibuprofen. Nasal endoscopy shows bilateral pale polyps. Which association is most characteristic?

A. Aspirin-exacerbated respiratory disease
B. Primary ciliary dyskinesia
C. Allergic bronchopulmonary aspergillosis
D. Chronic neutropenic sinusitis
E. Granulomatosis with polyangiitis

Internal Medicine Practice Question 2 — First-line therapy

A 45-year-old man with CRSwNP and asthma reports recurrent obstruction and anosmia. Best initial pharmacologic therapy?

A. Intranasal corticosteroid spray
B. Long-term oral antibiotics
C. Antihistamine monotherapy
D. Systemic corticosteroids indefinitely
E. Immediate aspirin desensitization for all

Internal Medicine Practice Question 3 — Diagnostic step

Which test best confirms the presence of nasal polyps in suspected CRSwNP?

A. Serum total IgE
B. Nasal endoscopy
C. MRI of paranasal sinuses
D. Skin-prick testing
E. Sweat chloride test

Internal Medicine Practice Question 4 — Medication strategy in AERD

In AERD with persistent symptoms despite intranasal steroids, which adjunct is most likely to improve upper and lower airway symptoms?

A. Inhaled anticholinergic
B. Intranasal antihistamine only
C. Leukotriene receptor antagonist
D. Daily macrolide therapy
E. Antifungal nasal irrigations

Internal Medicine Practice Question 5 — Imaging decision

A 42-year-old with CRSwNP fails maximal medical therapy and is referred for surgery. Which imaging is appropriate preoperatively?

A. Chest CT
B. MRI brain with contrast
C. Plain sinus radiographs
D. Non-contrast CT of the paranasal sinuses
E. PET-CT

 

Mini Case Discussion Prompt

Compare management strategies for (1) CRSwNP with confirmed AERD (history of NSAID-induced bronchospasm) versus (2) CRSwNP with atopic rhinitis but no NSAID sensitivity—discuss roles of leukotriene modifiers, brief oral steroid tapers, endoscopic evaluation, sinus CT for surgical planning, aspirin desensitization, and when to consider biologics (e.g., dupilumab) after failure of standard therapy.

 

Mini-FAQ

  • How do ABIM-style questions signal CRSwNP? Look for bilateral pale polyps, nasal obstruction, and especially anosmia in an adult with asthma.
  • Do boards expect me to order imaging to “diagnose” polyps? No—nasal endoscopy confirms polyps; CT is for extent/surgical planning (EPOS 2020).
  • What’s the board-favored initial treatment? Intranasal corticosteroids, saline irrigation, brief oral steroids for severe flares; add leukotriene modifiers in AERD (EPOS 2020, GINA 2024).
  • When is aspirin desensitization tested? In confirmed AERD with ongoing need for aspirin/NSAIDs or refractory symptoms under specialist care; not as first-line for all CRSwNP.

This question appears in Med-Challenger Internal Medicine Review with CME

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