Question
A. | Lateral to the superior labial frenulum |
B. |
Lateral to the lingual frenulum |
C. |
Into the foramen cecum |
D. |
Lateral to the second upper molar tooth |
Correct Answer � D Explanation |
|
Answer D) Lateral to the second upper molar tooth
Explanation: Ultrasonography shows that the stone is located in the parotid duct.
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The parotid duct emerges from the anterior edge of the parotid gland, turns medially at the anterior edge of the masseter muscle, and, after piercing through the buccinator muscle, enters the oral cavity lateral to the second upper molar.
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Sialolithiasis, which affects the parotid gland or duct in approx. 20% of cases, typically manifests with acute pain while eating and tender swelling of the affected gland, both of which are seen here.
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Risk factors include dehydration, certain medications (e.g., anticholinergics), and trauma.
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Sialolithiasis is usually treated conservatively, e.g., with NSAIDs and stimulation of salivary flow by gland massage or warm compresses.
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In severe cases or if conservative treatment fails, salivary stones can be removed via sialendoscopy or open surgical procedures.