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ENT · Head and neck tumours: necrotising sialometaplasia
Sample itemA smoker presents with a deep crater-like ulcer on the hard palate that appeared rapidly after dental local anaesthetic injection. Biopsy shows lobular necrosis of minor salivary glands with squamous metaplasia of the ducts. How should it be managed?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Reassurance, as it heals spontaneously over weeks
Necrotising sialometaplasia is a benign, self-limiting ischaemic lesion of minor salivary glands, usually on the hard palate. Its pseudo-epitheliomatous hyperplasia can be mistaken histologically for squamous carcinoma, so awareness avoids overtreatment. It heals by secondary intention in about 6 to 10 weeks.
Option by option
A. Radiotherapy
Radiotherapy is not indicated for a benign self-healing lesion.
B. Long-term systemic antifungal therapy
It is not a fungal infection, so antifungals do not help.
C. Wide excision with neck dissection
Radical surgery is for malignancy and would be an overtreatment.
D. Reassurance, as it heals spontaneously over weeks (correct)
Correct. Once diagnosed it needs only observation and analgesia.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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