Abstract:Objective To analyze the CT imaging characteristics of pulmonary carcinoid in different locations of airway. Methods Thirty cases of pulmonary carcinoid admitted to the First Affiliated Hospital of Guangzhou Medical University from January 2015 to December 2020 were retrospectively selected as the research objects. All patients underwent the plain, arterial and venous CT scan. The location, size, margin, density, enhancement degree, area of necrosis, calcification and lymph node metastasis were observed. Results According to lesions′ location in the airway, the lesions were divided into the central type, the hilar type, and peripheral type. According to lesions′ location in the airway, total 30 cases included 7 cases of central type, 9 cases of hilar type, and 14 cases of peripheral type. In 7 cases of central type, 4 nodules and 3 masses mainly located in trachea or main bronchial lumen. Especially, all masses were accompanied by extratubular growth. Nine cases of hilar type included 8 nodules and 1 mass in lobar or segmental bronchus, whose accompanied symptoms included 2 cases of pulmonary atelectasis, 1 case of mucous embolus in distal bronchial lumen, and 6 cases of obstructive inflammation. 14 cases of peripheral type in small bronchus (that is below the segmental bronchus) had 12 nodules and 2 masses, in which 11 cases had lobulation sign. The solid part of 90% lesions had moderate or severe enhancement in arterial phase, and the solid part of 100% lesions had moderate or severe enhancement in the venous phase. In 30 cases of pulmonary carcinoid, 18 cases showed patchy low-density area in the lesion and 12 cases showed no low-density. Only six cases of Hilar and mediastinal lymphadenopathy metastases were observed. All cases were surgically removed or biopsied, which included 17 cases of typical and 13 cases of atypical carcinoid. Conclusion Pulmonary carcinoid has different typical imaging manifestations in different location of tracheal bronchial tree. The density and enhancement are also distinctive for pulmonary carcinoid.
李林 ; 李娴. 支气管树各部位肺类癌的CT影像表现[J]. 中国当代医药, 2022, 29(20): 126-129转134.
LI Lin ; LI Xian. CT imaging characteristics of pulmonary carcinoid in different location of airway. 中国当代医药, 2022, 29(20): 126-129转134.
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