Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: Angiofibroma is classified as what stage if it extends to one or more paranasal sinuses?

Stage II B. ***Stage II B*** - In the **Radkowski classification**, Stage IB (not IIB) specifically describes extension to **one or more paranasal sinuses** (maxillary, ethmoid, or sphenoid). - However, if using **Fisch classification**, Stage II encompasses extension into **pterygopalatine fossa** or paranasal sinuses (maxillary, ethmoid, sphenoid). - Note: The question appears to reference a hybrid staging system. In standard Radkowski classification, paranasal sinus extension alone is **Stage IB**, not IIB. - Patients present with **epistaxis, nasal obstruction**, and symptoms related to the affected sinus. *Stage I A* - In **Radkowski classification**, Stage IA indicates tumor confined to the **nasopharynx and nasal cavity** without extension to paranasal sinuses. - Symptoms include **recurrent epistaxis** and **nasal obstruction** in adolescent males. *Stage III B* - In **Radkowski classification**, Stage IIIB represents **extensive skull base erosion** with intracranial extension. - May involve **cavernous sinus, intracranial structures**, with risk of **cranial nerve palsies** and **intracranial complications**. *Stage IV B* - This stage is **not part of standard Radkowski or Fisch classifications**, which typically extend only to Stage III or IV without A/B subdivisions at advanced stages. - Most advanced classifications describe massive intracranial extension with involvement of critical neurovascular structures.

Q: A 40-year-old woman presents with nasal congestion and difficulty breathing. An X-ray reveals a deviation of the nasal septum. What is the most likely management?

Septoplasty. ***Septoplasty*** - **Septoplasty** is the surgical correction of a **deviated nasal septum**, which is the direct cause of the patient's nasal congestion and difficulty breathing. - This procedure aims to straighten the septum, thereby improving airflow and resolving symptoms caused by the anatomical obstruction. - With X-ray confirmed deviation and significant symptoms, surgical correction is the **most likely definitive management**. *Antibiotics* - **Antibiotics** are used to treat bacterial infections, and there is no indication of an infection (e.g., fever, purulent discharge) in this patient's presentation. - A **deviated nasal septum** is an anatomical problem that cannot be resolved with medication. *Nasal corticosteroids* - **Nasal corticosteroids** are typically used to reduce inflammation in conditions like allergic rhinitis or chronic sinusitis. - While they may be tried as initial conservative management for mild DNS, they do not correct the underlying structural issue of a **deviated nasal septum**. - In this case with X-ray confirmed deviation and significant breathing difficulty, surgical correction is the most appropriate management. *Observation* - **Observation** is not appropriate when the patient is experiencing significant symptoms like difficulty breathing due to a clearly identified anatomical problem. - Delaying definitive treatment (septoplasty) would prolong the patient's discomfort and breathing difficulties.

Q: A 40-year-old male presents with a 2-week history of nasal obstruction and facial pain. An X-ray in the Waters' view shows opacity in the maxillary sinus with an air-fluid level. What is the most likely diagnosis?

Acute maxillary sinusitis. ***Acute maxillary sinusitis*** - An **air-fluid level** in the maxillary sinus on X-ray, along with a presentation of **nasal obstruction** and likely facial pain, is a classical finding in **acute sinusitis** due to fluid accumulation. - The symptoms are described as **chronic nasal obstruction** but the presence of an **acute inflammatory process** causing an air-fluid level points towards acute exacerbation or an acute episode. *Maxillary sinus polyp* - A maxillary sinus polyp typically presents as a **soft tissue density** filling the sinus, often causing remodeling of the sinus walls, but it does not usually cause an **air-fluid level**. - Polyps are growths of edematous mucosa, and while they can cause nasal obstruction, they don't involve the acute fluid accumulation seen with infection. *Maxillary sinus carcinoma* - Maxillary sinus carcinoma would typically show an **irregular, often destructive soft tissue mass** on imaging, with bone erosion, rather than a well-defined air-fluid level. - The clinical presentation often includes signs of malignancy such as epistaxis, facial swelling, or nerve involvement, which are not mentioned here. *Chronic maxillary sinusitis* - **Chronic sinusitis** usually presents with **mucosal thickening**, **sclerosis** of sinus walls, and sometimes **opacification** of the sinus on imaging due to persistent inflammation and edema. - While it causes chronic nasal obstruction, the specific finding of an **air-fluid level** is more indicative of an acute inflammatory process or fluid collection rather than the typical chronic features alone.

Q: A patient with a history of asthma presents with nasal congestion and forehead pain. Nasal endoscopy reveals polyps. What is the most likely diagnosis?

Chronic rhinosinusitis with nasal polyps. ***Chronic rhinosinusitis with nasal polyps*** - The combination of **asthma**, **nasal congestion**, **forehead pain**, and the presence of **nasal polyps** on endoscopy is highly indicative of chronic rhinosinusitis with nasal polyps. - This condition is often associated with **aspirin-exacerbated respiratory disease (AERD)**, a co-morbidity syndrome frequently found in asthmatic patients with nasal polyps. *Allergic rhinitis* - While allergic rhinitis causes **nasal congestion** and can be associated with asthma, it typically does not lead to the formation of **nasal polyps**. - Symptoms are usually seasonal or triggered by specific allergens and do not commonly present with persistent **forehead pain** unless complicated by sinusitis. *Septal deviation* - **Septal deviation** can cause nasal obstruction and congestion, and sometimes facial pain, but it does **not** cause the formation of **nasal polyps**. - It is a structural abnormality of the nasal septum. *Adenoid hypertrophy* - **Adenoid hypertrophy** primarily affects children, causing nasal congestion, mouth breathing, and sleep-disordered breathing. - It is highly unlikely in an adult patient and does **not** involve the formation of **nasal polyps**.

Q: What is the most common cause of nasal obstruction in adults?

Deviated nasal septum. ***Deviated nasal septum*** - **Deviated nasal septum (DNS)** is the most common cause of nasal obstruction in adults, with prevalence studies showing **70-80% of the population** having some degree of septal deviation. - It can cause **unilateral or bilateral obstruction** depending on the severity and type of deviation (C-shaped or S-shaped). - DNS may be **congenital or acquired** due to nasal trauma, and often becomes more symptomatic with age. - Many patients have **chronic, persistent symptoms** that don't respond to medical management, requiring surgical correction (septoplasty). *Allergic rhinitis* - **Allergic rhinitis** is the most common **inflammatory cause** of nasal obstruction, affecting 10-30% of adults. - It causes **intermittent or persistent congestion** with associated symptoms like sneezing, rhinorrhea, and nasal itching. - Unlike DNS, allergic rhinitis typically responds well to **medical management** with antihistamines, nasal steroids, and allergen avoidance. *Nasal polyps* - **Nasal polyps** are less common than DNS and allergic rhinitis in the general adult population. - They often coexist with **chronic rhinosinusitis**, allergic rhinitis, or **aspirin sensitivity** (Samter's triad). - Polyps cause progressive bilateral obstruction and are typically treated with steroids or surgical polypectomy. *Adenoid hypertrophy* - **Adenoid hypertrophy** is primarily a cause of nasal obstruction in **children**, not adults. - Adenoids typically **atrophy after puberty**, making this an uncommon cause in the adult population. - Persistent adenoid enlargement in adults should raise suspicion for **lymphoma or other pathology**.

Q: A newborn presents with cyanosis that worsens with feeding and improves with crying. What is the most likely diagnosis?

Choanal Atresia. ***Choanal Atresia*** - **Cyanosis** that worsens with feeding and improves with crying is a **classic presentation** of choanal atresia, as the infant cannot breathe through the nose while suckling. - The condition is caused by the **failure of the posterior nasal passages to canalize** during fetal development. *Tetralogy of Fallot* - Characterized by **cyanotic spells** (tet spells) which are sudden, profound cyanosis and hyperpnea, often triggered by crying or feeding, but the cyanosis would not typically improve with crying. - Involves **four defects**: pulmonary stenosis, ventricular septal defect, overriding aorta, and right ventricular hypertrophy. *Transposition of Great Arteries* - Presents with **severe cyanosis at birth** that does not significantly improve with crying, as there is a fundamental separation of pulmonary and systemic circulations. - Survival depends on mixing of oxygenated and deoxygenated blood through a **patent ductus arteriosus (PDA)** or **patent foramen ovale (PFO)**. *Patent Ductus Arteriosus* - Typically presents with a **continuous "machinery-like" murmur** and signs of **heart failure**, not primarily with cyanosis that fluctuates with feeding. - This condition involves a persistent connection between the **aorta and pulmonary artery** after birth, leading to left-to-right shunting.

Q: A 50-year-old male with a history of chronic sinusitis presents with a new onset of double vision. What is the most likely complication?

Orbital abscess. ***Orbital abscess*** - Chronic sinusitis, especially **ethmoid** or **frontal sinusitis**, can spread directly into the orbit due to the thin bony walls separating the sinuses from the orbital cavity, leading to an **orbital abscess**. - An orbital abscess can cause **proptosis**, **ophthalmoplegia**, and **diplopia (double vision)** due to compression or inflammation of extraocular muscles and nerves within the orbit. *Cavernous sinus thrombosis* - While a serious complication of sinusitis, **cavernous sinus thrombosis** typically presents with more widespread symptoms like severe headache, high fever, periorbital edema, and involvement of multiple cranial nerves (III, IV, V1, V2, VI), often leading to a more acute and severe clinical picture than just isolated double vision. - The double vision in cavernous sinus thrombosis would be due to multiple **oculomotor nerve palsies**, whereas in orbital abscess, it's more localized compression or inflammation. *Optic neuritis* - **Optic neuritis** is inflammation of the optic nerve, primarily causing **vision loss** (blurred vision, central scotoma), **pain with eye movement**, and sometimes **impairment of color vision**. - While sinusitis can sometimes cause optic neuropathy, optic neuritis primarily affects visual acuity rather than diplopia, which is related to motor function of the eyes. *Nasal obstruction* - **Nasal obstruction** is a common symptom of chronic sinusitis itself, but it is not a complication that would cause new onset of **double vision**. - Double vision implies involvement of the extraocular muscles or their innervation, which is not directly related to mechanical blockage of nasal passages.

Q: A 6-year-old child presents with unilateral purulent nasal discharge and a foul odor. What is the most likely diagnosis?

Foreign body. ***Foreign body*** - **Unilateral purulent nasal discharge** with a **foul odor** in a child is highly suggestive of a nasal foreign body. - Children often insert objects into their nostrils, leading to inflammation, infection, and the described symptoms. *Allergic rhinitis* - Typically presents with **bilateral clear nasal discharge**, sneezing, and nasal itching. - It does not usually cause unilateral purulent discharge or a foul odor. *Nasal polyp* - Usually presents with **bilateral nasal obstruction** and a diminished sense of smell. - While it can be associated with chronic inflammation, it does not typically cause unilateral foul-smelling purulent discharge in a child. *Acute sinusitis* - Characterized by **purulent nasal discharge**, facial pain/pressure, and fever, but it is typically **bilateral** and rarely associated with a distinct foul odor unless there is a severe anaerobic infection. - While possible, the unilateral nature and foul odor make a foreign body more likely in a child.

Q: What is the most common cause of epistaxis in children?

Trauma. ***Trauma*** - **Nose picking** is the most frequent cause of epistaxis in children, often leading to trauma to **Kiesselbach's plexus** in the anterior nasal septum. - Other traumatic causes include **falls**, **sports injuries**, and insertion of **foreign bodies** into the nose. *Infection* - While **upper respiratory tract infections** can cause nasal mucosal inflammation and dryness, leading to epistaxis, it is not the most common primary cause compared to direct trauma. - Inflammatory conditions like **rhinitis** can make the nasal mucosa more fragile and prone to bleeding. *Tumor* - **Nasal tumors** are a rare cause of epistaxis in children, and bleeding from a tumor often presents with other symptoms like **unilateral nasal obstruction** or **facial swelling**. - While concerning, it is not the typical etiology for recurrent nosebleeds in this age group. *Hypertension* - **Hypertension** is a significant cause of epistaxis in adults, often involving posterior nosebleeds, but it is **rare in children** and thus not a common cause of pediatric epistaxis. - If a child presents with hypertension and epistaxis, an underlying systemic cause should be investigated.

Q: The antrochoanal polyp is usually:

Single and grows posteriorly. ***Single and grows posteriorly*** - Antrochoanal polyps (ACPs) are characteristically **solitary** and originate from the **maxillary sinus antrum**, extending through the osteum into the choana and often into the nasopharynx. - Their growth pattern is typically **posterior**, explaining symptoms such as nasal obstruction and sometimes dysphagia as they enlarge. *Multiple* - While other nasal polyps can be multiple (e.g., those associated with **chronic rhinosinusitis with nasal polyposis**), antrochoanal polyps are almost exclusively **single**. - A multiple presentation would suggest a different underlying pathology, such as **allergic fungal rhinosinusitis**. *Bleeding* - Significant bleeding is not a typical characteristic of antrochoanal polyps; they are generally **non-hemorrhagic**. - Recurrent epistaxis associated with a nasal mass might raise suspicion for more aggressive lesions like **angiofibroma** or malignancy. *Bilateral* - Antrochoanal polyps are overwhelmingly **unilateral** because they arise from a single maxillary sinus. - Bilateral nasal polyps are more commonly associated with widespread inflammatory conditions like **allergic rhinitis** or **cystic fibrosis**.

Question 1

Angiofibroma is classified as what stage if it extends to one or more paranasal sinuses?

Accepted Answer

Stage II B

Answer

Stage I A

Answer

Stage III B

Answer

Stage IV B

Question 2

A 40-year-old woman presents with nasal congestion and difficulty breathing. An X-ray reveals a deviation of the nasal septum. What is the most likely management?

Accepted Answer

Septoplasty

Answer

Antibiotics

Answer

Nasal corticosteroids

Answer

Observation

Question 3

A 40-year-old male presents with a 2-week history of nasal obstruction and facial pain. An X-ray in the Waters' view shows opacity in the maxillary sinus with an air-fluid level. What is the most likely diagnosis?

Accepted Answer

Acute maxillary sinusitis

Answer

Maxillary sinus polyp

Answer

Maxillary sinus carcinoma

Answer

Chronic maxillary sinusitis

Question 4

A patient with a history of asthma presents with nasal congestion and forehead pain. Nasal endoscopy reveals polyps. What is the most likely diagnosis?

Accepted Answer

Chronic rhinosinusitis with nasal polyps

Answer

Allergic rhinitis

Answer

Septal deviation

Answer

Adenoid hypertrophy

Question 5

What is the most common cause of nasal obstruction in adults?

Accepted Answer

Deviated nasal septum

Answer

Nasal polyps

Answer

Adenoid hypertrophy

Answer

Allergic rhinitis

Question 6

A newborn presents with cyanosis that worsens with feeding and improves with crying. What is the most likely diagnosis?

Accepted Answer

Choanal Atresia

Answer

Tetralogy of Fallot

Answer

Transposition of Great Arteries

Answer

Patent Ductus Arteriosus

Question 7

A 50-year-old male with a history of chronic sinusitis presents with a new onset of double vision. What is the most likely complication?

Accepted Answer

Orbital abscess

Answer

Cavernous sinus thrombosis

Answer

Nasal obstruction

Answer

Optic neuritis

Question 8

A 6-year-old child presents with unilateral purulent nasal discharge and a foul odor. What is the most likely diagnosis?

Accepted Answer

Foreign body

Answer

Allergic rhinitis

Answer

Nasal polyp

Answer

Acute sinusitis

Question 9

What is the most common cause of epistaxis in children?

Accepted Answer

Trauma

Answer

Infection

Answer

Tumor

Answer

Hypertension

Question 10

The antrochoanal polyp is usually:

Accepted Answer

Single and grows posteriorly

Answer

Multiple

Answer

Bleeding

Answer

Bilateral

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

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