A 67-year-old man complains of a lesion in his left eye. Physical examination reveals a triangular fold of vascularized conjunctiva growing horizontally into the cornea in the shape of an insect wing. Which of the following terms best describes this patient's lesion?: (A) Loiasis, (B) Onchocerciasis, (C) Pinguecula, (D) Pterygium
Answer is D. Pterygium is a fold of vascularized conjunctiva that grows horizontally onto the cornea in the shape of an insect wing (hence the name). It is often associated with a pinguecula (conjunctival lump, choice C) and frequently recurs after excision.Diagnosis: Pterygium