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This is Pictorial 4 along tier 3. It is the first child of parent textual chapter, Text 4-X; this parent chapter is associated with 4 pictorials along tier 3.

SextrC14P1-1: This a classic pattern for a lesion of chondrodermatitis nodularis helicis. The epidermis shows hyperkeratosis and acanthosis.Centrally, there is a defect in the epidermis. Brightly acidophilic fibrinoid is deposited along the floor of the defect (red arrows).  Blue arrows identify a zone of dermal fibrosis. Green arrows identify a zone of chondroid metaplasia. Outside these central zones, the dermis shows solar elastosis.

Navigation bars below provide access to a web site (REED PATCH 3) mostly devoted to melanocytic lesions

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