10.5826/dpc.1203a139
text/xml
2160-9381
2154
en
Juan Pablo Jaimes
https://creativecommons.org/licenses/by-nc/4.0
Dermatology Practical & Conceptual
Melanoma, psoriasis, dermoscopy, dermatoscopy, inflammoscopy
A case of melanoma in a patient with psoriasis highlighting the importance of dermatoscopy and inflammoscopy.
Text.Serial.Journal
https://dpcj.org/index.php/dpc
Image Letter
2022-07-28
2021-12-08
2022-07-28
2022-09-15
e2022139
Dermatol Pract Concept
Juan Pablo Jaimes
2022/07/28
10.5826/dpc.1203a139
e2022139
Department of Dermatology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
2160-9381
Melanoma, psoriasis, dermoscopy, dermatoscopy, inflammoscopy
en
e2022139
A case of melanoma in a patient with psoriasis highlighting the importance of dermatoscopy and inflammoscopy.
https://dpcj.org/index.php/dpc/article/download/2154/1676
                    Dermatology Practical & Conceptual


      A Case of Melanoma in a Patient With Psoriasis
      Highlighting the Importance of Dermatoscopy
                   and Inflammoscopy
                             Sarah Benton1, Lori Ann Fiessinger1, Juan Pablo Jaimes1


1 Department of Dermatology, University of Minnesota Medical School, Minneapolis, Minnesota, USA



Citation: Benton S, Fiessinger LA, Jaimes JP. A case of melanoma in a patient with psoriasis highlighting the importance of dermatoscopy
and inflammoscopy. Dermatol Pract Concept. 2022;12(3):e2022139. DOI: https://doi.org/10.5826/dpc.1203a139
Accepted: December 27, 2021; Published: July 2022
Copyright: ©2022 Benton et al. This is an open-access article distributed under the terms of the Creative Commons Attribution-
NonCommercial License (BY-NC-4.0), https://creativecommons.org/licenses/by-nc/4.0/, which permits unrestricted noncommercial use,
distribution, and reproduction in any medium, provided the original authors and source are credited.
Funding: None.
Competing interests: None.
Authorship: All authors have contributed significantly to this publication
Corresponding author: Juan P Jaimes, MD, MS, Department of Dermatology, University of Minnesota Medical School, 516 Delaware St SE
Suite 4-240, Minneapolis, MN 55455, USA E-mail: jaim0004@umn.edu




Case Presentation                                                       Teaching Point
A male patient in his fourth decade of life presented to the            Though clinically the melanoma resembled a psoriatic
clinic for evaluation of psoriasis. Dermatoscopy of a lesion            papule, under dermatoscopy the lesion appeared very
on the right posterior upper arm that clinically resembled              different from other psoriatic lesions and had features of
a psoriasiform papule showed numerous polarizing-specific               melanoma. This highlights the importance of dermatos-
white lines and polymorphous vessels (Figures 1, A-C). Der-             copy and inflammoscopy in the diagnosis of neoplasms
matoscopy of nearby papules and plaques of psoriasis re-                and inflammatory conditions. The most common derma-
vealed white scale on a background of randomly distributed              toscopic pattern of psoriasis is erythematous background
dotted and coiled vessels (Figure 1D). The lesion in Figure             with evenly distributed red dots and white scale [1]. Polar-
1A was sent for histological analysis and found to be a ma-             izing specific white lines and polymorphous vessels, clues
lignant melanoma with a Breslow depth of 0.7 mm, occur-                 that can be seen in melanoma, would not be expected in
ring in association with a nevus.                                       psoriasis [2].




Image Letter | Dermatol Pract Concept. 2022;12(3):e2022139                                                                                 1
Figure 1. (A) Clinical image of the patient right upper arm with scattered pink papules and plaques with overlying white scale. (B) Close-up
image of the patient right upper posterior arm showing an 8 mm erythematous papule with white scale. (C) Dermatoscopic view showing
many polarizing-specific white lines and polymorphous vessels (polarized dermatoscopy). (D) Dermatoscopic view of nearby psoriasis show-
ing white scale on a background of randomly distributed dotted and coiled vessels (polarized dermatoscopy).




Informed consent: Written informed consent for publication of            2. Balagula Y, Braun RP, Rabinovitz HS, et al. The significance of
clinical details and clinical images was obtained from the patient.         crystalline/chrysalis structures in the diagnosis of melanocytic and
                                                                            nonmelanocytic lesions. J Am Acad Dermatol. 2012;67(2):194.
                                                                            e1-194.e8. DOI: 10.1016/j.jaad.2011.04.039. PMID: 22030020.
References
 1. Sgouros D, Apalla Z, Ioannides D, et al. Dermoscopy of Com-
    mon Inflammatory Disorders. Dermatol Clin. 2018;36(4):
    359-368. DOI: 10.1016/j.det.2018.05.003. PMID: 30201145.




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