Surgery A patient has small, oval multiple ulcers in oral cavity with red erythematous margins. The diagnosis is: A Carcinoma B Tubercular ulcer C Aphthous ulcer D Syphilitic ulcer 💡 Explanation A patient has small, oval multiple ulcers in oral cavity with red erythematous margins. The diagnosis is: ✓ Correct Answer: C. Aphthous ulcer