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Divided Nevus. Presented by Dr. Alfred W. Kopf.
A 62-year-old white man has had a macular, irregularly marginated, tan discoloration involving the outer one third of the upper and lower right eyelids since early childhood. This lesion extends around the outer canthus and onto the mucosal edge of the tarsal margins of the eyelids but spares the palpebral and bulbar conjunctivae.
The patient has numerous ephelides on his arms and some on his face. He states he was heavily freckled as a child in all exposed areas.
Dr. David Bloom: The location of the nevus in corresponding parts of the upper and lower eyelid can be explained on the basis of events in fetal life. Fusion of the upper and lower eyelid takes place at about nine weeks of fetal life. Soon after, a nevus may start to form in the region of fusion. About the fifth month the
THE BRONX DERMATOLOGICAL SOCIETY. Arch Dermatol. 1963;87(5):655–662. doi:10.1001/archderm.1963.01590170113023
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