• Users Online: 466
  • Print this page
  • Email this page


 
  Table of Contents  
TECHNICAL PEARL
Year : 2020  |  Volume : 11  |  Issue : 5  |  Page : 863  

Modification of a 32 G needle as an eyepiece pointer for light microscopy


Department of Dermatology, LTMMC and LTMGH, Sion, Mumbai, Maharashtra, India

Date of Submission27-Nov-2019
Date of Decision14-Jan-2020
Date of Acceptance06-Mar-2020
Date of Web Publication19-Sep-2020

Correspondence Address:
Sanober Burzin Daruwalla
Department of Dermatology, LTMMC and LTMGH, Sion, Mumbai, Maharashtra
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/idoj.IDOJ_586_19

Rights and Permissions

How to cite this article:
Agrawal S, Daruwalla SB, Dhurat RS. Modification of a 32 G needle as an eyepiece pointer for light microscopy. Indian Dermatol Online J 2020;11:863

How to cite this URL:
Agrawal S, Daruwalla SB, Dhurat RS. Modification of a 32 G needle as an eyepiece pointer for light microscopy. Indian Dermatol Online J [serial online] 2020 [cited 2020 Oct 26];11:863. Available from: https://www.idoj.in/text.asp?2020/11/5/863/295594




   Technological Challenge Top


Dermatopathology can bring out the inner ”Sherlock Holmes” of residents, as they make microscopic observations to reach to a definitive diagnosis.[1] To enhance proficiency in dermatopathology, interaction between residents and their mentor is indispensable for the learning process. Consequently, an eyepiece pointer under the light microscope serves as an important tool to point out various findings essential for making a diagnosis.[2] However, for some light microscopes, the pointer is not built-in but entails additional cost. Herein, we describe the use of a 32 G needle as an improvised eyepiece pointer for light microscopy.


   Solution Top


The shaft of a 32 G needle is separated from hub and is bent at 90° at a point 1 cm from bevel end [Figure 1]a. The base of this shaft is simply stuck to the inner wall of the eyepiece such that the bevel end is present at the center of the eyepiece which will function as a pointer [Figure 1]b. The subject of interest to be visualized and demonstrated in the field of view can be adjusted and placed next to the pointer. This simple modification will serve as a useful adjuvant to point out specific structures under the microscope [Figure 2].
Figure 1: (a) 32 G needle bent at 90° (b) Needle shaft stuck to the inner wall of the eyepiece such that the bevel end is present at the center

Click here to view
Figure 2: Needle pointer focusing on medulla of the hair shaft as seen through the microscope

Click here to view


Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
   References Top

1.
Singh S, Grummer S, Hancox J, Sangueza O, Feldman S. The extent of dermatopathology education: A comparison of pathology and dermatology. J Am Acad Dermatol 2005;53:694-7.  Back to cited text no. 1
    
2.
Lounsbury J. A Simple microscope eyepiece pointer. Science 1931;73:266-6.  Back to cited text no. 2
    


    Figures

  [Figure 1], [Figure 2]



 

Top
 
 
  Search
 
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

 
  In this article
    Technological Ch...
   Solution
    References
    Article Figures

 Article Access Statistics
    Viewed99    
    Printed0    
    Emailed0    
    PDF Downloaded10    
    Comments [Add]    

Recommend this journal