A pink and purple plaque

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Presentation transcript:

A pink and purple plaque Muriel Sadlier, MB MRCPI, Angela Alani, MB, MRCP, Olu B. Ipadeola, MD, Kashif Ahmad, MD JAAD Case Reports Volume 4, Issue 2, Pages 189-191 (March 2018) DOI: 10.1016/j.jdcr.2017.08.016 Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions

Fig 1 Clinical image of the lesion on the right knee. JAAD Case Reports 2018 4, 189-191DOI: (10.1016/j.jdcr.2017.08.016) Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions

Fig 2 Dermoscopic image of the lesion on the right knee. JAAD Case Reports 2018 4, 189-191DOI: (10.1016/j.jdcr.2017.08.016) Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions

Fig 3 A, Biopsy specimen shows atypical keratinocytes throughout the full thickness of the epidermis. B, A distinct dermal aggregate of atypical, mitotically active cells is also present. C, Immunostaining with pankeratin stains (AE1/AE3) highlights the epidermis. D, MART-1 stain highlights the dermal aggregate. (B, Hematoxylin-eosin stain; C, pankeratin stains; D, MART-1 stain; original magnifications: B, ×4; C, ×10; D, ×10.) JAAD Case Reports 2018 4, 189-191DOI: (10.1016/j.jdcr.2017.08.016) Copyright © 2017 American Academy of Dermatology, Inc. Terms and Conditions