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Pulmonary carcinoid tumors: CT assessment.
D Magid1, S S Siegelman, J C Eggleston
1Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Hospital, Baltimore, MD 21205.
Journal of Computer Assisted Tomography
|March 1, 1989
Summary
Computed tomography (CT) identified 12 pulmonary carcinoid tumors among 634 solitary pulmonary nodules. CT characteristics like calcification and contour varied between central and peripheral carcinoid tumors.
Area of Science:
- Radiology
- Thoracic Oncology
- Pulmonology
Background:
- Solitary pulmonary nodules (SPNs) are common findings on chest imaging.
- Pulmonary carcinoid tumors are a type of neuroendocrine tumor that can present as SPNs.
- Accurate characterization of SPNs is crucial for diagnosis and management.
Purpose of the Study:
- To evaluate the computed tomography (CT) features of pulmonary carcinoid tumors.
- To differentiate between central and peripheral carcinoid tumors based on CT findings.
- To correlate CT characteristics with surgical findings.
Main Methods:
- Retrospective review of CT scans from 634 surgically proven solitary pulmonary nodules.
- Identification and analysis of 12 pulmonary carcinoid tumors.
- Assessment of nodule location (central vs. peripheral), size, calcification, contour, and CT attenuation values.
Main Results:
- Twelve pulmonary carcinoid tumors were identified within 634 SPNs.
- Five tumors were central and seven were peripheral.
- Calcifications were noted in three central and one peripheral lesion.
- Nodule sizes ranged from 1.2 to 3 cm, with varied contours.
- Average CT numbers ranged from 80.5 to 179 HU.
Conclusions:
- CT can depict various features of pulmonary carcinoid tumors.
- Location (central vs. peripheral) influences CT appearance, including calcification patterns.
- CT findings, alongside clinical information, aid in the characterization of these neuroendocrine lung tumors.