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Differential Diagnosis of Giant Conjunctival Nevus: A, Giant pigmented conjunctival nevus measuring 23 × 12 × 2 mm, with prominent intralesional cysts. B, Diffuse primary acquired melanosis in an African American woman with dark pigment dusting involving the entire bulbar conjunctiva. C, Pigmented conjunctival melanoma measuring 6 × 5 × 4 mm at the limbus with associated primary acquired melanosis involving inferior bulbar and forniceal conjunctiva. D, Conjunctival lymphangiectasia with associated subconjunctival hemorrhages. | Shields, C. L., Regillo, A. C., Mellen, P. L., Kaliki, S., Lally, S. E., & Shields, J. A. (2013). Giant Conjunctival Nevus: Clinical Features and Natural Course in 32 CasesGiant Conjunctival NevusGiant Conjunctival Nevus. JAMA Ophthalmology, 131(7), 857–863. https://doi.org/10.1001/jamaophthalmol.2013.160