Statement C is incorrect. While the reticular form of oral lichen planus (presenting as Wickham's striae) can be asymptomatic and may not require treatment, other forms, particularly erosive and atrophic oral lichen planus, are often painful, cause significant discomfort, and require active management. Furthermore, erosive oral lichen planus is recognized as a potentially malignant disorder with a risk of transforming into squamous cell carcinoma, necessitating regular follow-up and sometimes treatment even if symptoms are mild. Statements A, B, and D are correct: Wickham's striae are a classic presentation, erosive forms have malignant potential, and an association with Hepatitis C virus infection has been well-documented.
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