What keratotic lesion is characterized by a lace-like network on the buccal mucosa?

Lichen Planus is recognized for its distinctive appearance, often displaying a lace-like network known as Wickham's striae on the buccal mucosa. This condition primarily affects the mucous membranes and skin, resulting in a pattern that features white interlacing lines and patches. The presence of these characteristic striae is a key diagnostic feature of lichen planus.

In contrast, keratosis follicularis is associated with hair follicles and would not present with the lace-like appearance typical of lichen planus. White sponge nevus typically manifests as soft, white, spongy lesions, not the fine, reticular pattern seen in lichen planus. Aphthous ulcers, which are painful and crater-like lesions, do not exhibit any characteristic lace-like pattern. Understanding these distinctions is crucial for accurate diagnosis and management of oral mucosal lesions.