10.5826/dpc.1401a80
text/xml
2160-9381
3876
en
Enzo Errichetti
https://creativecommons.org/licenses/by-nc/4.0
Dermatology Practical & Conceptual
The Contrail Without Jet: How Dermatoscopy of Scabies Changes in Skin of Color
Text.Serial.Journal
https://dpcj.org/index.php/dpc
Image Letter
2024-01-31
2023-09-21
2024-01-31
2024-02-21
e2024080
Dermatol Pract Concept
Enzo Errichetti
2024/01/31
10.5826/dpc.1401a80
e2024080
Dermatology Unit, University of Campania
2160-9381
en
e2024080
The Contrail Without Jet: How Dermatoscopy of Scabies Changes in Skin of Color
https://dpcj.org/index.php/dpc/article/download/3876/2552
         The Contrail Without Jet: How Dermatoscopy
             of Scabies Changes in Skin of Color
  Vincenzo Piccolo1, Giuseppe Argenziano1, Aimilios Lallas2, Teresa Russo1, Enzo Errichetti3


1 Dermatology Unit, University of Campania, Naples, Italy
2 Institute of Dermatology, “Santa Maria della Misericordia” University Hospital, Udine, Italy
3 First Department of Dermatology, Aristotle University, Thessaloniki, Greece



Citation: Picolo V, Argenziano G, Lallas A, Russo T, Errichetti E. The Contrail Without Jet: How Dermatoscopy of Scabies Changes in Skin
of Color. Dermatol Pract Concept. 2024;14(1):e2024080. DOI: https://doi.org/10.5826/dpc.1401a80
Accepted: September 5, 2023; Published: January 2024
Copyright: ©2024 Piccolo 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: Vincenzo Piccolo, MD, c/o II Policlinico, Edificio 9, Primo piano, Via Pansini 5 - 80131 Napoli, Italy.
Tel: +39-0815666834 FAX: +39-0815468759 E-mail: piccolo.vincenzo@gmail.com



Case Presentation                                                        Teaching Point
After examining upon dermatoscopy hundreds of black                      In latest years, a growing interest towards dermatology in
patients with scabies (Figure 1A), we noticed that the pig-              skin of color is arising, with a special focus on dermatoscopy.
mented part of burrow (delta glider sign, corresponding to               Definitely, scabies is the infectious condition which mostly
the anterior part of the mite) is often missing (Figure 1B).             benefits from dermatoscopic diagnosis, with the so called




                 Figure 1. (A) A 7-year-old African child with a diffuse itchy eruption of the trunk. (B) The contrail without
                 jet seen at dermatoscopy; the mite is probably confounded in the context of dark background of the patient.


Image Letter | Dermatol Pract Concept. 2024;14(1):e2024080                                                                            1
“jet with contrail sign”, being the most typical and specific         The “contrail without jet” is worth noting in skin of
finding in Caucasians. Reasons for that phenomenon, almost         color, with further larger studies still needed to confirm this
never seen in a control group of Caucasians, may be differ-        singular sign.
ent, including diffuse scaling due to intense scratching or pig-
mented background may render mite detection challenging.




2                                                                        Image Letter | Dermatol Pract Concept. 2024;14(1):e2024080
