Medical illustrations and diagrams
Citation, DOI, disclosures and article data
At the time the article was created Matt Skalski had no recorded disclosures.View Matt Skalski's current disclosures
At the time the article was last revised Frank Gaillard had the following disclosures:
- Biogen Australia Pty Ltd, Investigator-Initiated Research Grant for CAD software in multiple sclerosis: finished Oct 2021 (past)
These were assessed during peer review and were determined to not be relevant to the changes that were made.View Frank Gaillard's current disclosures
High-quality medical illustrations and diagrams form an important part of Radiopaedia.org.
All illustrations should have appropriate attribution in the case findings and only be uploaded to Radiopaedia under the following circumstances:
original illustrations created by you (you still have to state this in the description unless you have added a signature and license information - see below)
public domain image (source and original file needs to be listed in the case findings)
image reproduced with permission by the author/IP holder (again, this must be explicitly stated).
Illustrations should have sufficient detail to accurately depict both the basic anatomy of the region and pathology of the condition, in a clear and understandable manner. "Free-style" drawing is discouraged.
Illustrations should also be of high enough resolution as to view all relevant structures easily. Illustrations do not need to contain anatomic structures that are not relevant to the condition being depicted.
Resolution and aspect ratio
minimum resolution: 1600 x 1600 pixels
square image ratios only: all other image dimensions are automatically converted to square resolutions with black extension of the canvas when uploaded
Annotations and labels
Annotations and labels can be added hard-coded in the image and/or as in-app annotations.
header labels at the top of the image should be in bold with a leading capital letter
structure labels should be all lower-case (eponyms excepted) in regular font (no bold or italic)
labeled structures should be indicated using a fine black or white line to the label
no arrowheads (these are distracting and do not add to clarity)
lines are preferably horizontal, vertical, 45 degrees or a combination of these
use 'drop shadow' with white text and lines
Google Open Sans is the preferred font for all Radiopaedia content. It is a free Google font and can be installed on Windows and Mac computers.
Windows: Myriad Pro
Mac: Helvetica Neue
Relatively recently Radiopaedia now has the ability to add arrow-heads with labels linked to from the text. As such in many instances doing this is beneficial.
For most illustrations it is suggest that you add both a hard-coded version and one without any text and then add annotations in-app. This case is an example.
the artist's name or initials may be contained within the image in a non-obstructive, non-distracting location, preferably in the bottom right corner; this should not be larger in the vertical dimension than the smallest font size in the image
creative commons license is at artist’s discretion, however, the default on Radiopaedia is BY-NC-SA
do not watermark images
Image background color
The illustration background color should ideally be plain white, plain black, or black with a subtle circular grey gradient.
The following templates illustrate the above requirements and can be easily modified to suit your illustration. Each file includes plain white, plain black and gradient backgrounds.