Tuberculosis CT: Difference between revisions
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===Pulmonary Tuberculosis=== | ===Pulmonary Tuberculosis=== | ||
*Chest CT abnormalities are seen in the majority of patients with active pulmonary tuberculosis. | *Chest CT abnormalities are seen in the majority of patients with active pulmonary tuberculosis. | ||
*CT | *CT findings include:<ref>{{Cite journal | ||
| author = [[Jeong Min Ko]], [[Hyun Jin Park]] & [[Chi Hong Kim]] | | author = [[Jeong Min Ko]], [[Hyun Jin Park]] & [[Chi Hong Kim]] | ||
| title = Pulmonary Changes of Pleural Tuberculosis: Up-to-Date CT Imaging | | title = Pulmonary Changes of Pleural Tuberculosis: Up-to-Date CT Imaging | ||
Revision as of 17:56, 16 September 2014
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Tuberculosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Tuberculosis CT On the Web |
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American Roentgen Ray Society Images of Tuberculosis CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Alejandro Lemor, M.D. [2]
Overview
The majority of patients with pulmonary tuberculosis will have abnormal findings in a chest CT, which include micronodules, interlobular septal thickening, cavitation and consolidation.
Computed Tomography
Pulmonary Tuberculosis
- Chest CT abnormalities are seen in the majority of patients with active pulmonary tuberculosis.
- CT findings include:[1]
- Micronodules
- Most commonly located in the subpleural region and peribronchovascular interstitium.
- Interlobular septal thickening
- Cavitation
- Homogeneous and dense consolidation
- CT is more sensitive to detect hiliar lymphadenpathy.
- The "tree-in-bud" sign is a CT finding that may be seen in pulmonary tuberculosis and it is caused by mucus or pus plugging into the small airways that accentuates the branching course of peripheral airways.[2]
Extrapulmonary Tuberculosis
Cardiac Tuberculosis
- Pericardial thickening may be seen in a CT, specially if it is more than 3 mm.[3]
- Lymph node enlargment is also a common CT findings in cardiac tuberculosis.[3]
- Pericardial effusion is seen in less than 20% of patients.[3]
Disseminated Tuberculosis
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Tuberculous Meningitis
- Head CT findings in tuberculous meningitis include meningeal enhancement consistent with meningeal inflammation and coroidal calcifications.[4]
- Areas of infarction and hemorrhage may also be seen in cases of miliar tuberculosis.
- Patients with late complications may show hydrocephalus.
Abdominal Tuberculosis
- CT findings in a pancreatic and spleen infection with tuberculosis may mimic a pancreatic cancer.[5]
- Shown below there is CT scan of the pancreas demonstrating a mass in the pancreatic tail and metastasizes in the spleen.
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References
- ↑ Jeong Min Ko, Hyun Jin Park & Chi Hong Kim (2014). "Pulmonary Changes of Pleural Tuberculosis: Up-to-Date CT Imaging". Chest. doi:10.1378/chest.14-0196. PMID 25086249. Unknown parameter
|month=ignored (help) - ↑ Eisenhuber, Edith (2002). "The Tree-in-Bud Sign1". Radiology. 222 (3): 771–772. doi:10.1148/radiol.2223991980. ISSN 0033-8419.
- ↑ 3.0 3.1 3.2 Burrill, Joshua; Williams, Christopher J.; Bain, Gillian; Conder, Gabriel; Hine, Andrew L.; Misra, Rakesh R. (2007). "Tuberculosis: A Radiologic Review1". RadioGraphics. 27 (5): 1255–1273. doi:10.1148/rg.275065176. ISSN 0271-5333.
- ↑ Komolafe, Morenikeji A; Sunmonu, Taofiki A; Esan, Olufunmi A (2008). "Tuberculous meningitis presenting with unusual clinical features in Nigerians: Two case reports". Cases Journal. 1 (1): 180. doi:10.1186/1757-1626-1-180. ISSN 1757-1626.
- ↑ Rong, YF; Lou, WH; Jin, DY (2008). "Pancreatic tuberculosis with splenic tuberculosis mimicking advanced pancreatic cancer with splenic metastasizes: a case report". Cases Journal. 1 (1): 84. doi:10.1186/1757-1626-1-84. ISSN 1757-1626.