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Case of the Week 629 
What is the most likely diagnosis?
- 73 year-old with left arm pain
Frontal Radiograph of the Chest
- Tuberculosis
- Subclavian artery aneurysm
- Mesothelioma
- Pancoast Tumor
- Sarcoidosis
Additional Image-close-up of a portion of the lung
Additional Images
Close-up of left upper lung field
Answer:
4. Pancoast Tumor
More (Click Discussion Tab)
Pancoast Tumor
General Considerations
- A lung tumor arising in the superior sulcus and comprising fewer than 5% of all primary lung cancers
- Described by Henry Pancoast in 1932
- The majority of the tumor growth is extrathoracic
- Directly invades
- Adjacent ribs, especially the 1st, 2nd and 3rd
- Vertebrae
- Brachial plexus
- Stellate ganglion
- Most are squamous cell carcinomas
- Fewer than 5% are small cell carcinomas
MORE . . .
.
This Week
73 year-old with left arm pain |
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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. |
