Which statement is NOT true regarding a conjunctival nevus?

• A. It is a pigmented lesion with inclusion cysts located within the lesion
• B. It typically first appears around the 5th decade of life
• C. It is a proliferation of melanocytes
• D. They are typically unilateral

Answer: (B)

Conjunctival nevus is a benign pigmented lesion caused by proliferation of melanocytes in the conjunctiva. It typically presents in childhood or adolescence, not around the fifth decade of life. It is usually unilateral and often contains inclusion cysts formed by trapped surface epithelium as the lesion develops. So the statement that it first appears around the fifth decade is not true. The other features—pigmented lesion with inclusion cysts, proliferation of melanocytes, and unilateral presentation—are consistent with conjunctival nevus.