OBJECTIVE: The "CT angiogram sign" in dynamic pulmonary CT consists of enhanced branching pulmonary vessels in a homogeneous hypoattenuating consolidation of lung parenchyma and is reportedly useful for diagnosing lobar bronchioloalveolar cell carcinomas. MATERIALS AND METHODS: To identify cases exhibiting the CT angiogram sign, we retrospectively reviewed the reports of 5,500 dynamic incremental CT examinations of the chest. RESULTS: We identified the CT angiogram sign in five patients with obstructive pneumonitis due to lung tumors and four patients with pneumonias. CONCLUSION: The CT angiogram sign can be observed in pulmonary consolidation of varying etiologies.
OBJECTIVE: The "CT angiogram sign" in dynamic pulmonary CT consists of enhanced branching pulmonary vessels in a homogeneous hypoattenuating consolidation of lung parenchyma and is reportedly useful for diagnosing lobar bronchioloalveolar cell carcinomas. MATERIALS AND METHODS: To identify cases exhibiting the CT angiogram sign, we retrospectively reviewed the reports of 5,500 dynamic incremental CT examinations of the chest. RESULTS: We identified the CT angiogram sign in five patients with obstructive pneumonitis due to lung tumors and four patients with pneumonias. CONCLUSION: The CT angiogram sign can be observed in pulmonary consolidation of varying etiologies.
Authors: Tae Hoon Kim; Sang Jin Kim; Young Hoon Ryu; Soo Yoon Chung; Jae Seung Seo; Young Jin Kim; Byoung Wook Choi; Sun Hwa Lee; Sang Ho Cho Journal: Eur Radiol Date: 2006-01-18 Impact factor: 5.315