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Case of the Week 558 
What is the most likely diagnosis?
- 40 year-old with weakness
Frontal and lateral radiographs of chest
- Tuberculosis
- Dissecting Aneurysm
- Thymoma
- Substernal Thyroid
- Bronchogenic Carcinoma
Additional Images - Enhanced Axial CT of Chest
Additional Images
Enhanced Axial CT of Chest
Answer:
3. Thymoma
More (Click Discussion Tab)
Thymoma
General Considerations
- Most common anterior mediastinal neoplasm
- Mean age of presentation is 52, older than teratomas
- Most are solid lymphoepithelial tumors of the thymus, some are cystic
- About 1/3 are malignant
- Rare in children — most common around 5th or 6th decade
MORE . . .
.
This Week
40 year-old with weakness |
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. |
