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LearningRadiology Imaging Signs
on Twitter
Case of the Week 382 
What sign is depicted on this image?
- 72 year-old with knee pain
Skyline (axial) View of Patella
1. Molar tooth sign
2. Picture-framing
3. Tooth sign
4. Floating tooth sign
5. Pencil-in-cup deformity
Additional Images - None
Additional Images
.
None
Answer:
.
3. Tooth Sign
.
.
More (Click Discussion Tab)
Tooth Sign
General Considerations
- Degenerative enthesophyte formation on superior aspect of patella as seen on axial or skyline (sunrise) view
- Form on superior and anterior surface of patella
- Site of insertion of the quadriceps tendon
- Frequent finding with degenerative disease
.
This Week
72 year-old with knee pain |
Part 2 reviews 50 more imaging signs, offers a description and example of each and names at least one disease in which the sign can be found |
Review descriptions of key imaging signs in the shorthand of Tweets by subscribing to this new LearningRadiology Twitter feed for your computer or cell phone
|
Some of the fundamentals of interpreting chest images |
The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology |
Recognizing normal and key abnormal intestinal gas patterns, free air and abdominal calcifications |
Recognizing the parameters that define a good chest x-ray; avoiding common pitfalls |
How to recognize the most common arthritides |
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| LearningRadiology.com |
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology. |
