Carcinoid syndrome CT: Difference between revisions
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==CT== | ==CT== | ||
===Midgut Carcinoids=== | |||
*CT is poor in detecting primary carcinoid tumours but helpful in evaluating the extent of tumour spread before surgical exploration.<ref name="pmid7619613">{{cite journal |vauthors=Sugimoto E, Lörelius LE, Eriksson B, Oberg K |title=Midgut carcinoid tumours. CT appearance |journal=Acta Radiol |volume=36 |issue=4 |pages=367–71 |date=July 1995 |pmid=7619613 |doi= |url=}}</ref> | |||
*Most common finding is liver metastase. | |||
*Mesenteric and retroperitoneal adenopathy can also b detected. | |||
===Peripheral Pulmonary Carcinoid Tumor High-Resolution CT Chest=== | ===Peripheral Pulmonary Carcinoid Tumor High-Resolution CT Chest=== | ||
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> | ||
Revision as of 14:32, 25 April 2019
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Carcinoid syndrome Microchapters |
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Diagnosis |
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Case Studies |
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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. [2]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [3]
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 with a lobulated margin, 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.
CT
Midgut Carcinoids
- CT is poor in detecting primary carcinoid tumours but helpful in evaluating the extent of tumour spread before surgical exploration.[1]
- Most common finding is liver metastase.
- Mesenteric and retroperitoneal adenopathy can also b detected.
Peripheral Pulmonary Carcinoid Tumor High-Resolution CT Chest
Findings on high-resolution CT scan suggestive of peripheral pulmonary carcinoid tumor include:[2]
- Discovered as an incidental solitary and round pulmonary nodule
- Size at diagnosis can vary but ranges between 10-30 mm
- Lobulated margin
Bronchial Carcinoid Tumor High-Resolution CT Chest
Findings on high-resolution CT scan suggestive of bronchial carcinoid tumor include:[3]
- Well-defined single hilar or perihilar mass
- Round or ovoid in shape
- Variable in size but typically ranges between 2-5 cm
- Marked homogeneous contrast enhancement due to high vascularity
- Calcification (usually eccentric) can occur
Thymic Carcinoid
Findings on neck CT scan suggestive of thymic carcinoid tumor include:[4]
- Mass with heterogeneous attenuation
Gallery
![[5]](/index.php/File:Carcinoid-001.jpg)
![[5]](/index.php/File:Carcinoid-002.jpg)
![[5]](/index.php/File:Carcinoid-003.jpg)
![[5]](/index.php/File:Carcinoid-004.jpg)
References
- ↑ Sugimoto E, Lörelius LE, Eriksson B, Oberg K (July 1995). "Midgut carcinoid tumours. CT appearance". Acta Radiol. 36 (4): 367–71. PMID 7619613.
- ↑ Peripheral pulmonary carcinoid tumour. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/peripheral-pulmonary-carcinoid-tumour
- ↑ Bronchial carcinoid tumour. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/bronchial-carcinoid-tumour
- ↑ Thymic carcinoid tumour. Dr Yuranga Weerakkody and Dr Mohammad Taghi Niknejad et al. Radiopaedia 2015. http://radiopaedia.org/articles/thymic-carcinoid-tumour
- ↑ 5.0 5.1 5.2 5.3 Image courtesy of Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia (original file [1]). [http://radiopaedia.org/licence Creative Commons BY-SA-NC