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Case of the Week 512 
What is the most likely diagnosis?
- 43 year-old female with hip stiffness
Frontal Pelvis Radiograph
- Dermoid
- Central fracture-dislocation
- Avascular Necrosis
- Acetabular Protrusio
- Pigmented Villonodular Synovitis
Additional Images-None
Additional Images
None
Answer:
4. Acetabular Protrusio
More (Click Discussion Tab)
Acetabular Protrusio
General Considerations
- Intrapelvic displacement of the medial acetabular wall
- Most common cause is osteoarthritis
- Primary form – Otto pelvis
- Marked female to male predominance
- Usually occurs in young to middle-aged
- Bilateral in 1/3 to 2/3 of patients
- No underlying causative mechanism is demonstrated
MORE . . .
.
This Week
43 year-old female with hip stiffness |
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. |
