Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Typical carcinoid
- Radiologic Findings
- Brief Review
- Most of the typical carcinoids are central in location, with manifestation of bronchial obstruction, such as, atelectasis, recurrent pneumonia, and obstructive pneumonitis. Peripheral carcinoids appear as solitary pulmonary nodules, usually homogeneous, sharply defined, round and slightly lobulated, which are usually less than 3 cm in size. They are highly vascular and usually show marked enhancement on CT and MRI. Although calcifications are seldom visible on chest radiographs, CT scan reveals calcification in 30% of patients. Carcinoids and bronchioloalveolar cell carcinoma (adenocarcinoma in situ) are two famous malignant SPNs showing little uptake on PET-CT.
- References
- Keywords
- lung, benign tumor,