Volume 3, Issue 2, Pages (March 2017)

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Volume 3, Issue 2, Pages 151-154 (March 2017) Hypertrophic lichen planus mimicking squamous cell carcinoma: The importance of clinicopathologic correlation Katherine A. Levandoski, BS, Rosalynn M. Nazarian, MD, Maryam M. Asgari, MD, MPH JAAD Case Reports Volume 3, Issue 2, Pages 151-154 (March 2017) DOI: 10.1016/j.jdcr.2017.01.020 Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions

Fig 1 Hypertrophic lichen planus clinical presentation. Erythematous hyperkeratotic plaque (arrow) surrounded by violaceous papules on the left pretibial area before treatment. JAAD Case Reports 2017 3, 151-154DOI: (10.1016/j.jdcr.2017.01.020) Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions

Fig 2 Hypertrophic lichen planus histopathology. Left midshin skin punch biopsy result shows hyperkeratosis, wedge-shaped hypergranulosis (asterisk), irregular epidermal hyperplasia, and endophytic well-differentiated squamous epithelium (arrow) with associated lichenoid inflammation and eosinophils. (Hematoxylin-eosin stain; original magnification: ×100.) JAAD Case Reports 2017 3, 151-154DOI: (10.1016/j.jdcr.2017.01.020) Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions

Fig 3 Hypertrophic lichen planus posttreatment. Decreased thickness, erythema, and scaling of the plaque on the left pretibial area (arrow) after topical and intralesional steroids. JAAD Case Reports 2017 3, 151-154DOI: (10.1016/j.jdcr.2017.01.020) Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions