Carcinoid syndrome CT: Difference between revisions

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==Overview==
==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.<ref name=thymicCT> Thymic carcinoid tumour. Dr Yuranga Weerakkody and Dr Mohammad Taghi Niknejad et al. Radiopaedia 2015. http://radiopaedia.org/articles/thymic-carcinoid-tumour </ref><ref name=pulmonaryCT> Peripheral pulmonary carcinoid tumour
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.
. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/peripheral-pulmonary-carcinoid-tumour </ref>


==CT==
==CT==

Revision as of 00:18, 5 January 2019

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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

Peripheral Pulmonary Carcinoid Tumor High-Resolution CT Chest

Findings on high-resolution CT scan suggestive of peripheral pulmonary carcinoid tumor include:[1]

  • 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:[2]

  • 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:[3]

  • Mass with heterogeneous attenuation

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References

  1. Peripheral pulmonary carcinoid tumour. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/peripheral-pulmonary-carcinoid-tumour
  2. Bronchial carcinoid tumour. Dr Henry Knipe and Dr Yuranga Weerakkody et al. Radiopaedia 2015. http://radiopaedia.org/articles/bronchial-carcinoid-tumour
  3. Thymic carcinoid tumour. Dr Yuranga Weerakkody and Dr Mohammad Taghi Niknejad et al. Radiopaedia 2015. http://radiopaedia.org/articles/thymic-carcinoid-tumour
  4. 4.0 4.1 4.2 4.3 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

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