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  Table of Contents  
DERMATOLOGY PEARLS
Year : 2019  |  Volume : 10  |  Issue : 3  |  Page : 346  

Modification of dermoscopes for difficult to access sites


1 Department of Dermatology, King Faisal University, Al-Hasa Campus, Al Hasa, Kingdom of Saudi Arabia
2 Department of Otorhinolaryngology, King Faisal University, Al-Hasa Campus, Al Hasa, Kingdom of Saudi Arabia

Date of Web Publication17-May-2019

Correspondence Address:
Feroze Kaliyadan
Department of Dermatology, King Faisal University, Al-Hasa Campus, Al Hasa
Kingdom of Saudi Arabia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/idoj.IDOJ_429_18

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How to cite this article:
Kaliyadan F, Mohammed AW. Modification of dermoscopes for difficult to access sites. Indian Dermatol Online J 2019;10:346

How to cite this URL:
Kaliyadan F, Mohammed AW. Modification of dermoscopes for difficult to access sites. Indian Dermatol Online J [serial online] 2019 [cited 2019 Sep 15];10:346. Available from: http://www.idoj.in/text.asp?2019/10/3/346/258609




   Problem Faced Top


Some sites like body folds and deeper mucosal areas are not easily amenable to dermoscopy because of the inherent shape of the presently available dermoscopes, especially the handheld ones, and more so in the context of contact dermoscopy. The use of USB dermoscopes and modified arthroscopes to explore mucosa has been described previously for contact mucoscopy.[1],[2]


   Solution Proposed Top


We tried using a handheld rigid otoendoscope for dermoscopy for focused contact dermoscopy of less accessible sites (such as interdigital spaces and mucosa), because of the longer and thinner shape, as compared to normal handheld dermoscopes. The otoscope (Vaansari Marketing services™; 2.7 mm diameter; 100 mm length; cost approximately 25000 INR) was attached to a mobile phone camera with a simple adapter to take images [Figure 1]. The advantages are that it does not need a separate monitor for viewing or capturing images (unlike USB dermoscopes), the tip can be sterilized easily with alcohol solution, and most importantly its thin and long shape allows access to difficult areas. The otoscope was useful for the visualization of skin lesions as well as nail fold capillaries [Figure 2].
Figure 1: (a) Rigid otoscope attached to a mobile phone camera; (b) using the rigid otoscope for mucoscopy

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Figure 2: (a) Dermoscopy of periungual viral wart using the rigid otoscope, showing the thrombosed capillaries. (2) Nail fold capillaroscopy using the rigid otoscope (alcohol gel was used as the contact fluid; images were taken with a Samsung® S8 plus phone)

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The limitation, however, was that it was not easy to focus the images for capturing photographs because even mild movement leads to significant blurring. Moreover, the otoscopy did not have an inbuilt magnification, hence, the magnification is essentially the digital zoom of the attached camera. We feel that dermoscope manufacturers should consider incorporating options for either adapters or dermoscopes with longer and thinner end-pieces, which will help in the dermoscopy of difficult to access sites.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
   References Top

1.
Jakhar D, Grover C. Innovative modification of the USB dermatoscope for mucoscopy. J Am Acad Dermatol 2018;78:e3-e4.  Back to cited text no. 1
    
2.
Sakamaki H, Kondoh T, Takeda Y, Yamazaki Y, Nogami T, Tobe M, et al. Development of contact mucoscopy for oral mucosal diseases; a preliminary report. J Jap Soc Oral Muc Memb 2007;13:8-15.  Back to cited text no. 2
    


    Figures

  [Figure 1], [Figure 2]



 

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