Respiratory Medicine ( IF 4.3 ) Pub Date : 2020-04-28 , DOI: 10.1016/j.rmed.2020.105986 Tomás Franquet 1 , Melissa L Rosado-de-Christenson 2 , Edson Marchiori 3 , Gerald F Abbott 4 , Santiago Martínez-Jiménez 2 , Laura López 1
Although metastasis can occur at a variety of sites, pulmonary involvement is common in patients with cancer. Depending on the source and type of tumor, pulmonary metastases present with a wide range of radiologic appearances. Hematogenous dissemination through the pulmonary arteries to the pulmonary capillary network is the most common form of spread in pulmonary metastases. However, they may also reach the lung via lymphatic dissemination, secondary airway involvement, vessel tumor embolism, and direct chest invasion. In the evaluation of patients with known extrathoracic tumors, CT is the state-of-the-art imaging modality for detecting and characterize pulmonary metastases as well as to predict resectability. Although CT limitations are well known, knowledge of growth rates of various tumors and understanding the pattern of spread may be helpful clues in suggesting and even establish the specific diagnosis. The purpose of this pictorial review is to discuss the imaging appearances of different patterns of intrathoracic tumoral dissemination.
中文翻译:
肺外肿瘤的罕见胸廓表现:计算机断层扫描评估-图片审查。
尽管转移可能发生在许多部位,但肺癌患者常见于肺部受累。根据肿瘤的来源和类型,肺转移瘤的放射学表现范围很广。通过肺动脉至肺毛细血管网的血源性扩散是肺转移中最常见的扩散形式。但是,它们也可能通过淋巴扩散,次级气道受累,血管肿瘤栓塞和直接胸部侵袭到达肺部。在对已知胸外肿瘤患者的评估中,CT是用于检测和表征肺转移以及预测可切除性的最新成像方式。尽管CT的局限性众所周知,了解各种肿瘤的生长速度并了解其传播方式可能对建议甚至建立具体的诊断有帮助。本图片审查的目的是讨论胸腔内肿瘤扩散的不同模式的影像学表现。