Carcinoid syndrome CT: Difference between revisions
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Findings on high-resolution CT scan suggestive of peripheral pulmonary carcinoid tumor include:<ref name=pulmonaryCT>Peripheral pulmonary carcinoid tumour. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/peripheral-pulmonary-carcinoid-tumour</ref> | Findings on high-resolution CT scan suggestive of peripheral pulmonary carcinoid tumor include:<ref name=pulmonaryCT>Peripheral pulmonary carcinoid tumour. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/peripheral-pulmonary-carcinoid-tumour</ref> | ||
*Most are discovered as an incidental solitary and round pulmonary nodule. | *Most are discovered as an incidental solitary and round pulmonary nodule. | ||
*Size at diagnosis can vary but ranges | *Size at diagnosis can vary but ranges between 10-30mm. | ||
*Lobulated margin with an average Hounsfield value on post contrast imaging at around 50. | *Lobulated margin with an average Hounsfield value on post contrast imaging at around 50. | ||
*Imaging features are often non specific and tissue diagnosis is essential in determining diagnosis. | *Imaging features are often non specific and tissue diagnosis is essential in determining diagnosis. | ||
Revision as of 20:45, 29 September 2015
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Carcinoid syndrome CT On the Web |
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American Roentgen Ray Society Images of Carcinoid syndrome CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]
Overview
Chest CT scan may be helpful in the diagnosis of carcinoid tumor. On high-resolution CT scan of the chest, peripheral pulmonary carcinoid tumor is characterized by a solitary and round pulmonary nodule, whereas bronchial carcinoid tumor is characterized by a single well-defined, round or ovoid, hilar or perihilar mass with marked homogenous enhancement. On CT scan of the neck, thymic carcinoid tumor is characterized by a mass with heterogeneous attenuation.[1][2]
CT
Peripheral Pulmonary Carcinoid Tumor High-Resolution CT Chest
Findings on high-resolution CT scan suggestive of peripheral pulmonary carcinoid tumor include:[2]
- Most are discovered as an incidental solitary and round pulmonary nodule.
- Size at diagnosis can vary but ranges between 10-30mm.
- Lobulated margin with an average Hounsfield value on post contrast imaging at around 50.
- Imaging features are often non specific and tissue diagnosis is essential in determining diagnosis.
Bronchial Carcinoid Tumor High-Resolution CT Chest
Findings on high-resolution CT scan suggestive of bronchial carcinoid tumor include:
- A single hilar or perihilar mass which is usually well-defined, round or ovoid.
- Can be of any size but typically range ~2-5 cm.
- There is often marked homogeneous contrast enhancement due to high vascularity.
- Calcification (usually eccentric) can occur but is not a common feature.
Thymic Carcinoid
On CT scan of the neck, thymic carcinoid tumor is characterized by a mass with heterogeneous attenuation.[1]
Gallery
References
- ↑ 1.0 1.1 Thymic carcinoid tumour. Dr Yuranga Weerakkody and Dr Mohammad Taghi Niknejad et al. Radiopaedia 2015. http://radiopaedia.org/articles/thymic-carcinoid-tumour
- ↑ 2.0 2.1 Peripheral pulmonary carcinoid tumour . Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/peripheral-pulmonary-carcinoid-tumour