Question:
Scutum is present in which part of the middle ear?
Scutum is present in which part of the middle ear?
Show Hint
It is the shield-shaped bony spur above the tympanic membrane.
Updated On: Jun 24, 2026
- Roof
- Lateral wall
- Medial wall
- Floor
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: The scutum is a thin, shield-shaped plate of bone in the middle ear. It forms the upper part of the lateral (outer) wall of the tympanic cavity.
Step 2: The lateral wall of the middle ear is largely formed by the tympanic membrane, with the scutum bounding the attic (epitympanum) above the membrane. Hence the answer is lateral wall.
Step 3: The scutum is an important landmark, because its erosion on imaging is an early sign of an acquired cholesteatoma in the attic region.
Step 4: The roof (tegmen tympani), the medial wall (with the promontory and oval window) and the floor (jugular wall) do not contain the scutum, so they are incorrect.
Step 2: The lateral wall of the middle ear is largely formed by the tympanic membrane, with the scutum bounding the attic (epitympanum) above the membrane. Hence the answer is lateral wall.
Step 3: The scutum is an important landmark, because its erosion on imaging is an early sign of an acquired cholesteatoma in the attic region.
Step 4: The roof (tegmen tympani), the medial wall (with the promontory and oval window) and the floor (jugular wall) do not contain the scutum, so they are incorrect.
Was this answer helpful?
0
0
Top NEET PG ENT Questions
- A 30-year-old male presents with nonaxial proptosis of the left eye. The patient gives a history of a road traffic accident 15 years back. The CT image is given below. What is the most likely diagnosis?
- A 55-year-old patient comes with hoarseness of voice and difficulty swallowing. The patient was diagnosed with laryngeal carcinoma, and surgical management was done. The post-operative image of the patient is given below. Which of the following surgery was done on this patient?
- A female patient with hearing loss is examined and is found to be Rinne negative at 256 Hzand 512 Hz, while Rinne positive at 1024 Hz. What is the expected air conduction and bone conduction gap?
- Identify the structure marked in the image.
- The instrument shown in the image is not used for which of the following?
View More Questions
Top NEET PG Questions
- A patient hailing from Delhi presents with fever, arthralgia, and extensive petechial rash for 3 days. Lab investigations revealed a hemoglobin of 9 g/ dL, a white blood cell count of 9000 cells/mm3, a platelet count of 20000 cells/mm3, and a prolonged bleeding time. The clotting time was normal. What is the most likely diagnosis?
- Which of the following statements is true about Trichomonas vaginalis?
- A lady from West Rajasthan presented with an ulcer surrounded by erythema on the right leg. Microscopy of the biopsy from the edge of the ulcer showed organisms with dark staining nuclei and kinetoplast. What is the most likely causative agent?
- A child presents with a fever and a rash. Urine examination showed cells with owl's eye appearance. What is the most likely diagnosis?
- Infection with Clonorchis sinensis is associated with an increased risk of__?
View More Questions