CIN is a conjunctival neoplasia that has the potential to progress into what malignancy?

CIN is a conjunctival neoplasia that has the potential to progress into what malignancy?

• A. Squamous cell carcinoma
• B. Basal cell carcinoma
• C. Melanoma
• D. Adenocarcinoma

Answer: (A)

Conjunctival intraepithelial neoplasia is a squamous epithelial dysplasia of the surface conjunctiva. It acts as a precursor that can become invasive if the abnormal squamous cells breach the basement membrane, progressing to squamous cell carcinoma of the conjunctiva. The other tumor types listed are distinct entities and are not the typical malignant progression from CIN; CIN most directly evolves into squamous cell carcinoma, reflecting the natural history of squamous surface neoplasia on the ocular surface.

Conjunctival intraepithelial neoplasia is a squamous epithelial dysplasia of the surface conjunctiva. It acts as a precursor that can become invasive if the abnormal squamous cells breach the basement membrane, progressing to squamous cell carcinoma of the conjunctiva. The other tumor types listed are distinct entities and are not the typical malignant progression from CIN; CIN most directly evolves into squamous cell carcinoma, reflecting the natural history of squamous surface neoplasia on the ocular surface.