Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: Which of the following is not a feature of ethmoidal polyp?

Commonly found as a single polyp. ***Commonly found as a single polyp*** - **Ethmoidal polyps** are typically **multiple** and bilateral, originating from the ethmoid sinuses. - They rarely present as a single, isolated polyp, which is more characteristic of antrochoanal polyps. - This is the key distinguishing feature that makes this statement INCORRECT. *Common in adults* - **Ethmoidal polyps** are indeed **more prevalent in adults** than in children. - Peak incidence occurs between 30-50 years of age. - Their incidence tends to increase with age, often associated with chronic rhinosinusitis. *Commonly bilateral* - **Ethmoidal polyps** almost invariably present as **bilateral polyps**, involving both sides of the nasal cavity. - This bilateral nature is a key differentiating feature from antrochoanal polyps, which are typically unilateral. - Bilateral presentation is one of the hallmark characteristics of ethmoidal polyps. *Associated with chronic rhinosinusitis* - **Ethmoidal polyps** are strongly associated with **chronic rhinosinusitis with nasal polyposis (CRSwNP)**. - They arise from chronic mucosal inflammation of the ethmoid sinuses. - Often associated with conditions like aspirin-exacerbated respiratory disease (AERD/Samter's triad) and non-allergic eosinophilic inflammation.

Q: Which of the following is NOT a typical feature of a nasal foreign body?

Anosmia. ***Anosmia*** - **Anosmia**, or the loss of the sense of smell, is generally not a primary or typical symptom of a nasal foreign body unless the foreign body directly obstructs the **olfactory epithelium** or causes severe inflammatory changes leading to nerve damage. - While prolonged inflammation *could* theoretically affect smell, it is a less common and indirect manifestation compared to the more immediate mechanical or irritative symptoms. *Foul smelling discharge* - A **foul-smelling, unilateral nasal discharge** is a classic and highly indicative sign of a nasal foreign body, especially in children, due to local infection and tissue breakdown. - This symptom results from the foreign body trapping bacteria and causing a local inflammatory response within the nasal cavity. *Epistaxis* - **Epistaxis**, or nosebleed, can occur if the foreign body is sharp, abrasive, or causes significant irritation to the delicate nasal mucosa, leading to trauma and bleeding. - The constant presence and pressure of a foreign body can erode the mucosal lining, exposing blood vessels and resulting in bleeding. *Nasal obstruction* - **Nasal obstruction** is a very common and expected symptom of a nasal foreign body, as the object itself physically blocks the airflow through the affected nostril. - This blockage can lead to difficulty breathing through the nose and a feeling of fullness or congestion on the affected side.

Q: What is the treatment of choice for ethmoidal polyps?

Functional Endoscopic sinus surgery with polypectomy. ***Functional Endoscopic sinus surgery with polypectomy*** - This is the **gold standard treatment** for ethmoidal polyps, as it allows for **direct visualization** and complete removal of polyps while preserving healthy mucosa. - It also enables restoration of normal sinus ventilation and drainage, which helps prevent recurrence. *Intranasal ethmoidectomy* - This is an **older technique** that is performed blindly and carries a higher risk of complications, such as **orbital or intracranial injury**, compared to endoscopic approaches. - It often results in incomplete polyp removal, leading to a higher rate of recurrence. *Transantral ethmoidectomy* - This approach, also known as the **Caldwell-Luc procedure**, is primarily used for diseases of the **maxillary sinus** and is not the preferred method for isolated ethmoidal polyps. - It is a more invasive external approach with risks including facial swelling, pain, and damage to dental nerves. *Extranasal ethmoidectomy* - This is a more invasive **external approach** involving an incision on the face and is generally reserved for extensive or complicated cases, such as **tumors or severe trauma**, not for routine polyp removal. - It carries risks of visible scarring and longer recovery times, making it less favorable than endoscopic techniques.

Q: In Caldwell Luc operation, the approach is through the?

Opening of maxillary antrum through gingivolabial approach. ***Opening of maxillary antrum through gingivolabial approach*** - The **Caldwell-Luc operation** involves creating a surgical window in the anterior wall of the **maxillary sinus** via an incision in the **gingivolabial sulcus** (also called sublabial sulcus). - This **open surgical approach** through the canine fossa provides direct access to the antrum for removal of pathology, foreign bodies, or drainage of chronic infections. - The incision is made above the canine tooth, and the anterior wall of the maxilla is fenestrated. *Transnasal endoscopic approach through the middle meatus* - This describes **functional endoscopic sinus surgery (FESS)**, which is a minimally invasive endoscopic technique, not the traditional open Caldwell-Luc procedure. - While FESS accesses the maxillary sinus through the natural ostium or by creating a middle meatal antrostomy, it is a fundamentally different approach. - Caldwell-Luc is an **extranasal, open approach**, whereas FESS is an **intranasal, endoscopic approach**. *Through the sphenopalatine recess for maxillary sinus access* - The **sphenopalatine recess** is primarily associated with endoscopic approaches to the sphenoid sinus or procedures involving the **pterygopalatine fossa**, not the Caldwell-Luc approach. - This approach does not involve breaching the anterior wall of the maxillary sinus through the canine fossa. *Accessing the maxillary sinus via superior meatus* - The **superior meatus** is not used for accessing the maxillary sinus in any standard surgical approach. - The natural ostium of the maxillary sinus opens into the **middle meatus**, not the superior meatus. - The superior meatus drains the posterior ethmoid cells, not the maxillary sinus.

Q: All of the following are treatments for multiple bilateral ethmoidal polyps except which of the following?

Caldwell Luc Surgery. ***Caldwell Luc Surgery*** - This procedure accesses the **maxillary sinus** through an incision in the gingivobuccal sulcus, primarily used for maxillary sinus pathology. - It is **not the primary treatment** for ethmoidal polyps, which are located in the ethmoid sinuses. *Intranasal ethmoidectomy* - This is a common and effective surgical approach to remove ethmoidal polyps, involving access through the **nostrils**. - It allows for direct visualization and removal of polyps within the ethmoid labyrinth. *Extranasal ethmoidectomy* - This surgical approach involves an external incision (e.g., Lynch-Howarth incision) to access the ethmoid sinuses. - It is typically reserved for **extensive or complicated ethmoid disease** or in cases where intranasal approaches are insufficient. *Functional endoscopic sinus surgery* - This is the **gold standard** for treating chronic rhinosinusitis with polyps, including ethmoidal polyps. - It uses an endoscope to visualize and remove polyps while preserving healthy mucosa and restoring normal sinus drainage and ventilation.

Q: The narrowest part of the nasal cavity is?

Internal nasal valve. ***Internal nasal valve*** - The **internal nasal valve** is considered the narrowest and most restrictive part of the **nasal airway**. - It is formed by the caudal border of the **upper lateral cartilage**, septum, and the head of the inferior turbinate. *Antrochoanal region* - The **antrochoanal region** is the posterior opening of the nasal cavity into the nasopharynx. - While it can be narrowed by polyps or mucosal swelling, it is not anatomically the **narrowest fixed point** of the nasal cavity. *1st nasal turbinate* - The **inferior turbinate** (often referred to as the 1st turbinate) can contribute to nasal resistance, especially when enlarged. - However, the turbinate itself is a structure that can vary in size and degree of congestion, but the **internal nasal valve** represents a consistently narrower anatomical choke point. *External nasal valve* - The **external nasal valve** is formed by the ala, columella, and nostril rim, and represents the entrance to the nasal cavity. - While it is a critical area for airflow, it is typically wider than the **internal nasal valve**.

Q: The artery which leads to bleeding in Woodruff's area is?

Sphenopalatine artery. ***Sphenopalatine artery*** - **Woodruff's area** is located on the posterior lateral wall of the nasal cavity, specifically a plexus of veins and arteries inferior to the posterior end of the inferior turbinate. - Bleeding from this region, often associated with **posterior epistaxis**, typically involves branches of the **sphenopalatine artery**. *Anterior ethmoidal artery* - The **anterior ethmoidal artery** is primarily involved in **anterior epistaxis**, supplying Kiesselbach's plexus on the nasal septum. - It does not contribute significantly to bleeding from Woodruff's area on the posterior lateral wall. *Greater palatine artery* - The **greater palatine artery** supplies the hard and soft palate and a small portion of the nasal floor. - It is not a major contributor to bleeding in Woodruff's area, which is located more superiorly and posteriorly on the lateral nasal wall. *Superior labial artery* - The **superior labial artery** is a branch of the facial artery, primarily supplying the upper lip and philtrum. - While it contributes to the vascular supply of the anterior nasal septum, it is not involved in bleeding from Woodruff's area.

Q: All of the following are causes of perforation of the cartilaginous part of the nasal septum except?

Syphilis. ***Syphilis*** - **Syphilis** typically causes perforation of the **bony part** of the nasal septum, particularly the vomer and perpendicular plate of the ethmoid bone, due to chronic granulomatous inflammation. - The cartilaginous septum is generally less affected by syphilis in terms of perforation, although early mucosal involvement can occur. *Trauma* - **Trauma** (e.g., nose picking, septal surgery, foreign body insertion) is a common cause of **perforation of the cartilaginous nasal septum**. - Such injuries can lead to localized necrosis and subsequent perforation due to disruption of the blood supply to the septal cartilage. *Tuberculosis* - **Tuberculosis** can cause **granulomatous inflammation** and necrosis, leading to perforation of the **cartilaginous nasal septum**. - This is part of extrapulmonary tuberculosis and can present with chronic nasal obstruction and discharge. *Leprosy* - **Leprosy** (Hansen's disease) is known to cause severe destruction of nasal structures due to chronic inflammation, including perforation of the **cartilaginous nasal septum**. - The specific bacteria cause granulomatous lesions that erode the cartilage over time.

Q: Posterior epistaxis occurs from:

Woodruff's plexus. ***Woodruff's plexus*** - **Woodruff's plexus** is a collection of large, often friable veins located on the **posterior aspect of the lateral wall of the nasal cavity**, making it the most common anatomical site for **posterior epistaxis**. - Bleeding from this plexus is typically more severe and difficult to control than anterior epistaxis due to the larger vessel size and posterior location. - Located in the **posterolateral nasal cavity** near the posterior end of the inferior turbinate. *Kiesselbach's plexus* - **Kiesselbach's plexus** (also known as Little's area) is located on the **anterior nasal septum** and is the most common site for **anterior epistaxis**. - This is an anastomotic network of vessels from multiple arterial sources in the anterior nasal cavity. - Bleeding from this plexus is usually less severe and often responds to local pressure or cauterization. *Sphenopalatine artery* - The **sphenopalatine artery** is the terminal branch of the maxillary artery and is the primary arterial supply to the posterior nasal cavity. - While it supplies the area where posterior epistaxis occurs, the venous **Woodruff's plexus** is the specific anatomical structure most commonly associated with posterior epistaxis. - The sphenopalatine artery may require ligation or embolization in severe posterior epistaxis cases. *Little's area* - **Little's area** is another name for **Kiesselbach's plexus** and is located on the **anterior nasal septum**, primarily responsible for anterior epistaxis. - This area is highly vascularized by anastomoses of the anterior ethmoidal, sphenopalatine, greater palatine, superior labial, and septal branches of arteries. - Prone to bleeding from minor trauma, digital manipulation, or mucosal dryness.

Q: Most common sinus to be involved in acute sinusitis?

Maxillary. ***Maxillary*** - The **maxillary sinuses** are the largest paranasal sinuses and are the most commonly involved in acute sinusitis due to their anatomical position and drainage characteristics. - Their ostia (drainage openings) are located on the superior aspect of the sinus, which can make drainage difficult when the patient is upright, leading to stasis of secretions and increased susceptibility to infection. *Ethmoid* - The ethmoid sinuses are a group of small air cells located between the eyes and are the second most commonly infected in sinusitis. - While frequently involved, especially in children, they are not as commonly affected as the maxillary sinuses in the general adult population with acute sinusitis. *Sphenoid* - The sphenoid sinuses are located deep within the skull, behind the eyes, and are the least commonly involved in acute sinusitis. - Inflammation here can be serious due to proximity to important structures like the optic nerves and carotid arteries, but it's not the most frequent site of infection. *Frontal* - The frontal sinuses are located in the forehead and are less commonly involved in acute sinusitis compared to the maxillary and ethmoid sinuses. - Their development is not complete until adolescence, and they are typically drained via the frontonasal duct, which can become easily obstructed.

Question 1

Which of the following is not a feature of ethmoidal polyp?

Accepted Answer

Commonly found as a single polyp

Answer

Common in adults

Answer

Commonly bilateral

Answer

Associated with chronic rhinosinusitis

Question 2

Which of the following is NOT a typical feature of a nasal foreign body?

Accepted Answer

Anosmia

Answer

Foul smelling discharge

Answer

Epistaxis

Answer

Nasal obstruction

Question 3

What is the treatment of choice for ethmoidal polyps?

Accepted Answer

Functional Endoscopic sinus surgery with polypectomy

Answer

Intranasal ethmoidectomy

Answer

Transantral ethmoidectomy

Answer

Extranasal ethmoidectomy

Question 4

In Caldwell Luc operation, the approach is through the?

Accepted Answer

Opening of maxillary antrum through gingivolabial approach

Answer

Transnasal endoscopic approach through the middle meatus

Answer

Through the sphenopalatine recess for maxillary sinus access

Answer

Accessing the maxillary sinus via superior meatus

Question 5

All of the following are treatments for multiple bilateral ethmoidal polyps except which of the following?

Accepted Answer

Caldwell Luc Surgery

Answer

Intranasal ethmoidectomy

Answer

Extranasal ethmoidectomy

Answer

Functional endoscopic sinus surgery

Question 6

The narrowest part of the nasal cavity is?

Accepted Answer

Internal nasal valve

Answer

Antrochoanal region

Answer

1st nasal turbinate

Answer

External nasal valve

Question 7

The artery which leads to bleeding in Woodruff's area is?

Accepted Answer

Sphenopalatine artery

Answer

Anterior ethmoidal artery

Answer

Greater palatine artery

Answer

Superior labial artery

Question 8

All of the following are causes of perforation of the cartilaginous part of the nasal septum except?

Accepted Answer

Syphilis

Answer

Tuberculosis

Answer

Leprosy

Answer

Trauma

Question 9

Posterior epistaxis occurs from:

Accepted Answer

Woodruff's plexus

Answer

Kiesselbach's plexus

Answer

Sphenopalatine artery

Answer

Little's area

Question 10

Most common sinus to be involved in acute sinusitis?

Accepted Answer

Maxillary

Answer

Ethmoid

Answer

Sphenoid

Answer

Frontal

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

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