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Case of the Week 466 
What is the most likely diagnosis?
- 35 year-old whose pre-employment chest radiograph shows abnormal shadow
Frontal and Lateral Chest Radiograph
- Pneumomediastinum
- Sarcoid
- Neurofibroma
- Interrupted IVC with Azygos Continuation
- Mitral Stenosis
Additional Image - Enhanced axial CT images of chest and abdomen
Additional Images
Enhanced axial CT images of chest and abdomen
Answer:
4. Interrupted IVC with Azygos Continuation
More (Click Discussion Tab)
Interrupted IVC with Azygos Continuation
General Considerations
- Rare
- Frequently associated with other congenital anomalies
- Occurs in 0.6% of patients with congenital heart defects
- In usual form, the IVC is interrupted above level of renal veins
- There is absence of the hepatic segment of the IVC and the post-renal IVC continues as azygos and hemiazygos veins
- Embryologically, there is a failure to form right subcardinal–hepatic anastomosis resulting in atrophy of right subcardinal vein
MORE . . .
.
This Week
35 year-old whose pre-employment chest radiograph shows abnormal shadow |
Presented as a series of cards, this podcast asks some of the most common causes of neuroimaging findings and diseases making it ideal for a quick review. Can be used as either an audio only or audio/video podcast.; Complements Video Flashcard Podcasts 15, 21,25, 38, 42, 46 and 47. |
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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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. |
