The following conditions most likely respond to therapeutic diagnosis except one. Which one is the exception?

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Stafne bone cyst, in which entrapped salivary gland tissue is identified, is diagnosed through surgical examination. Angular cheilitis commonly responds to antifungal therapy once nutritional deficiencies have been ruled out. Necrotizing ulcerative gingivitis responds to hydrogen peroxide rinses. Nutritional deficiencies are common conditions diagnosed by therapeutic means.

The Following Conditions Most Likely Respond to Therapeutic Diagnosis Except