Rhinology

Rhinology Indian Medical PG Question 1: FESS means:

• A. Flexible endoscopic sinus surgery
• B. Functional endoscopic sinus surgery (Correct Answer)
• C. Fibroscopic endoscopic sinus surgery
• D. Frontal endoscopic sinus surgery

Rhinology Explanation: ***Functional endoscopic sinus surgery*** - **FESS** is a minimally invasive surgical technique used to treat **chronic sinusitis** and other sinus conditions. - The goal of FESS is to restore normal sinus function and ventilation by removing obstructions and diseased tissue. *Flexible endoscopic sinus surgery* - This term is incorrect; while FESS uses endoscopes, they are generally rigid, not flexible, for better visualization and instrumentation. - **Flexible endoscopes** are more commonly used for procedures like bronchoscopy or colonoscopy. *Fibroscopic endoscopic sinus surgery* - The term **fibroscopic** is typically associated with scopes employing fiber optics but is not the correct full form of the acronym FESS. - This option incorrectly modifies the standard medical terminology for this procedure. *Frontal endoscopic sinus surgery* - While FESS can be performed on the **frontal sinuses**, this option is too specific and does not represent the complete and correct expansion of the acronym. - FESS encompasses procedures on all paranasal sinuses, not just the frontal sinus.

Rhinology Indian Medical PG Question 2: Sphenoid sinus drains into what?

• A. Sphenoethmoidal recess (Correct Answer)
• B. Middle meatus
• C. Superior meatus
• D. Inferior meatus

Rhinology Explanation: ***Sphenoethmoidal recess*** - The **sphenoid sinus** consistently drains into the **sphenoethmoidal recess**, a small area located superior and posterior to the superior concha. - This drainage pathway is distinct from other paranasal sinuses and is a key anatomical landmark for sinus drainage. *Middle Meatus* - The **middle meatus** serves as the drainage site for the **frontal sinus**, **maxillary sinus**, and the **anterior ethmoidal air cells**. - Its complex anatomy includes the hiatus semilunaris and ethmoidal bulla, which are not involved in sphenoid sinus drainage. *Superior meatus* - The **superior meatus** typically receives drainage from the **posterior ethmoidal air cells**. - It is located inferior to the superior nasal concha and is distinct from the superior-most sphenoethmoidal recess. *Inferior meatus* - The **inferior meatus** is the drainage site for the **nasolacrimal duct**, which carries tears from the eye into the nasal cavity. - It does not receive drainage from any of the paranasal sinuses.

Rhinology Indian Medical PG Question 3: Motor protein in organ of Corti -

• A. Kinesin
• B. Myosin (Correct Answer)
• C. Albumin
• D. Dynein

Rhinology Explanation: **Myosin** - **Myosin I** and **Myosin VIIa** are key motor proteins found in the **hair cells** of the organ of Corti. - They play crucial roles in **stereocilia bundle stiffness** and the **adaptation** process of mechanotransduction, which is essential for hearing. *Kinesin* - **Kinesin** is primarily involved in **anterograde axonal transport** of vesicles and organelles along microtubules in neurons. - It is not the primary motor protein responsible for the unique mechanical properties of hair cells in the organ of Corti. *Albumin* - **Albumin** is a major **plasma protein** primarily involved in maintaining **osmotic pressure** and transporting various substances in the bloodstream. - It is not a motor protein and does not have a direct role in the mechanical function of the organ of Corti. *Dynein* - **Dynein** is a microtubule-associated motor protein responsible for **retrograde axonal transport** and the movement of cilia and flagella. - While important for intracellular transport in many cells, it is not the primary motor protein driving the mechanical processes within the hair cells of the organ of Corti.

Rhinology Indian Medical PG Question 4: An ICU patient is suffering from Rhinovirus infection. How do we treat the patient?

• A. Piperacillin + Tazobactam + Azithromycin
• B. Clarithromycin
• C. Cephalosporin + Ganciclovir
• D. Supportive care only (Correct Answer)

Rhinology Explanation: ***Supportive care only*** - **Rhinovirus** is a common cause of the **common cold**, and there is no specific antiviral treatment available for it. [1] - Management focuses on alleviating symptoms such as fever, congestion, and cough to ensure patient comfort and prevent secondary complications, especially in an ICU setting. *Piperacillin + Tazobactam + Azithromycin* - This combination is a broad-spectrum antibiotic regimen (piperacillin/tazobactam is an extended-spectrum penicillin, and azithromycin is a macrolide) targeting bacterial infections. [2] - **Rhinovirus is a virus**, and antibiotics are ineffective against viral infections, making this an inappropriate treatment. *Clarithromycin* - **Clarithromycin** is a macrolide antibiotic primarily used to treat bacterial infections, such as respiratory tract infections caused by **atypical bacteria** or community-acquired pneumonia. [2] - It has no activity against **Rhinovirus**, a common cold virus. *Cephalosporin + Ganciclovir* - **Cephalosporins** are a class of beta-lactam antibiotics used for various bacterial infections. [2] - **Ganciclovir** is an antiviral agent specifically used to treat **cytomegalovirus (CMV)** infections, not Rhinovirus.

Rhinology Indian Medical PG Question 5: Halo sign and handkerchief test are positive in which condition?

• A. Cerebrospinal Fluid Rhinorrhea (Correct Answer)
• B. Nasal Septum Deviation
• C. Nasal Myiasis Infection
• D. Choanal Atresia Condition

Rhinology Explanation: ***Cerebrospinal Fluid Rhinorrhea*** - The **halo sign** (or double ring sign) is a common diagnostic indicator for **CSF leakage**, appearing as a blood stain surrounded by a clear ring on filter paper. - The **handkerchief test** observes the spreading pattern of fluid, where CSF forms a distinct outer ring due to its capillary action, differentiating it from mucus or blood. *Nasal Septum Deviation* - This condition involves the displacement of the **nasal septum**, leading to symptoms like nasal obstruction and difficulty breathing. - It does not involve any fluid leakage and therefore would not present with a **halo sign** or be relevant to the **handkerchief test**. *Nasal Myiasis Infection* - **Nasal myiasis** is an infestation of the nasal cavity by fly larvae (maggots), causing pain, discharge, and obstruction. - The discharge associated with this condition is typically purulent and bloody, but it would not exhibit the characteristic **halo sign** or react uniquely to the **handkerchief test** like CSF. *Choanal Atresia Condition* - **Choanal atresia** is a congenital malformation where the back of the nasal passage (choana) is blocked, usually by bone or soft tissue. - Symptoms include difficulty breathing and feeding in neonates due to complete or partial nasal obstruction; there is no abnormal CSF leakage involved.

Rhinology Flashcard 1 of 5

Question: Fossa of Rosenmuller (yellow arrow) is visualized during the _____ pass of diagnostic nasal endoscopy.

Answer: first

Rhinology Flashcard 2 of 5

Question: _____ is used as a first-line agent for nasal packing

Answer: Merocel

Rhinology Flashcard 3 of 5

Question: What is the sequence of artery ligation in epistaxis control?_____

Answer: TESPAL>Maxillary>ECA>Anterior and Posterior ethmoidal

Rhinology Flashcard 4 of 5

Question: Positive _____ test indicates abnormality of the vestibular component of nasal valve.

Answer: Cottle's

Rhinology Flashcard 5 of 5

Question: _____ method is used to control epistaxis.

Answer: Trotters