Examination reveals an asymptomatic 1 x 1 cm red mass between teeth 7 and 8 . The patient is pregnant and in good health. Which of the following should be at the top of a differential diag-nosis list?

a. Erythroplasia
b. Gingival cyst
c. Candidiasis
d. Pyogenic granuloma
e. Peripheral fibroma

D