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Case of the Week 608 
What is the most likely diagnosis?
- 62 year-old with fever and cough
Axial CT Scan of Chest
- Silicosis
- Bronchoalveolar cell carcinoma
- Miliary tuberculosis
- Rheumatoid nodules
- Multiple arteriovenous malformations
Additional Image - Close-up of Axial CT Scan of Right Hemithorax
Additional Images
Close-up of Axial CT Scan of Right Hemithorax
Answer:
3.Miliary tuberculosis
More (Click Discussion Tab)
Miliary Tuberculosis
General Considerations
- Widespread hematogenous dissemination of Mycobacterium Tuberculosis
- So named because the nodules are the size of millet seeds (1-5mm with a mean of 2 mm)
- Miliary TB represents only 1-3% of all cases of TB
- Older men, African Americans and pregnant women are susceptible
- Considered to be a manifestation of primary TB–although clinical appearance of miliary TB may not occur for many years after initial infection
- When treated, clearing is frequently rapid
- Miliary TB seldom, if ever, produces calcification
- Under age 5, there is an increased risk of meningitis
MORE . . .
.
This Week
62 year-old with fever and cough |
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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. |
