Feline third eyelid conjunctival sequestrum: Case series (2014–2024)

Abstract This case series describes three cats with a brown pigmented lesion affecting the conjunctiva of the third eyelid, which was confirmed histologically as conjunctival sequestrum. All cats also had other ocular surface disease, including entropion, chronic corneal ulceration or corneal sequestrum, suggesting that chronic irritation or inflammation may contribute to lesion development. Surgical removal of the third eyelid lesion was successful in all cases, and no recurrence was observed during follow‐up. Although rare, conjunctival sequestrum should be considered as a differential diagnosis for pigmented third eyelid lesions in cats, particularly when concurrent corneal disease or chronic ocular irritation is present.