An adult patient presents with multiple, painless, grayish-white plaques overlying an ulcerated surface occuring on the buccal mucosa. Blood examination revealed a positive VDRL test. The lesion is most likely to be
1. A decubitus ulcer
2. Lichen planus
3. Pemphigus vulgaris
4. A mucous patch
📝 Explanation:
Mucous patches are characteristic of secondary syphilis, presenting as multiple, painless, grayish-white plaques with an ulcerated surface on oral mucosa, especially buccal mucosa. The positive VDRL test confirms syphilis. Decubitus ulcers are traumatic, lichen planus shows white striations without ulceration typically, and pemphigus vulgaris shows vesiculobullous lesions rather than plaques.
MCQ