Question:
The most common site of a branchial cyst is:
The most common site of a branchial cyst is:
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Think anterior triangle, upper third of the SCM muscle.
Updated On: Jun 23, 2026
- Posterior border of sternocleidomastoid
- Anterior border of sternocleidomastoid
- Digastric muscle
- Omohyoid muscle
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The Correct Option is B
Solution and Explanation
Step 1: A branchial cleft cyst typically presents as a solitary, painless neck swelling in a child or young adult.
Step 2: The classic location is along the anterior border and upper third of the sternocleidomastoid muscle, within the anterior triangle of the neck.
Step 3: The other options do not fit. The posterior border relates to lesions like cystic hygroma, while the digastric and omohyoid are not the typical reference borders for this cyst.
Step 4: Hence the most common site is the anterior border of the sternocleidomastoid.
Step 2: The classic location is along the anterior border and upper third of the sternocleidomastoid muscle, within the anterior triangle of the neck.
Step 3: The other options do not fit. The posterior border relates to lesions like cystic hygroma, while the digastric and omohyoid are not the typical reference borders for this cyst.
Step 4: Hence the most common site is the anterior border of the sternocleidomastoid.
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