A<unk>  is any<unk> r lesion at the limbus (junction of the cornea and sclera) of the eye. The differential diagnosis for a<unk>  can include: *Pinguecula *Early Pterygium *Foreign body / foreign body granuloma *Phlycten, an inflamed<unk>  of lymphoid tissue *Episcleritis *Scleritis *Granuloma<unk>  dermoid, a kind of choristoma (NB: in other organs dermoid can refer to a teratoma) * malignant melanoma * naevus
Limbal nodule
Enamel pearl
Phlebolith
Skin tag
Keratoconus
Subareolar abscess
Vitreous bulge
Genital wart