SECTION EDITOR: MARY S. STONE, MD; ASSISTANT SECTION EDITORS: SOON BAHRAMI, MD; CARRIE ANN R. CUSACK, MD; MOLLY A. HINSHAW, MD; ARNI K. KRISTJANSSON, MD; LORI D. PROK, MD
The biopsy specimen demonstrates a focus of chondrocyte proliferation within fibrosis in the dermis with normally structured auricular cartilage at the base of the specimen (Figure 2). Newly formed chondrocytes merge with the perichondrium of the auricular cartilage (Figure 3). In addition, solar elastosis, fibrosis of collagen, and telangiectasia without inflammatory infiltrates were noted in the papillary dermis, underlying a normal epidermis with focal orthokeratosis.
Firm Papules on the Auricular Helix—Diagnosis. JAMA Dermatol. 2013;149(4):475–480. doi:10.1001/jamadermatol.2013.2075b
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