Jahn C, Schmutz G, Wihlm J M, Chazelet C, Roeslin N, Hannequin F
J Radiol. 1987 Feb;68(2):89-96.
Cystic mediastinal lymphangiomas are rare benign uncommon slow-growing tumors. Seven cases of cystic mediastinal lymphangioma in adults are presented. In both cases a mediastinal opacity is evident on plain chest radiographs. Roentgen findings are not specific. The mass is noted to be non-pulsatile, and well circumscribed smooth-surfaced. There are no evidence of invasion to the neighboring structures and no calcification are seen within the lesions. In two patients, sonography examination confirmed the cystic nature of the mass. Four patients underwent computed tomography (CT) scan. Ct can offer considerable additional information: CT will show well circumscribed and uniform low density lesions without invasive characteristics. Attenuation values in CT scan cannot be considered conclusive for diagnosis in all cases, on the non contrast scan, attenuation varied between -49 to +27 UH, there was no contrast enhancement.
纵隔囊性淋巴管瘤是罕见的良性、生长缓慢的肿瘤。本文报告7例成人纵隔囊性淋巴管瘤。两例患者胸部X线平片显示纵隔有明显的不透光区。X线表现不具有特异性。肿块无搏动，边界清晰，表面光滑。没有侵犯邻近结构的证据，病变内未见钙化。两名患者的超声检查证实了肿块的囊性性质。四名患者接受了计算机断层扫描（CT）。CT能提供更多信息：CT显示边界清晰、密度均匀的低密度病变，无侵袭性特征。CT扫描的衰减值在所有病例中都不能作为诊断的决定性依据，在非增强扫描中，衰减值在-49至+27 UH之间变化，无强化。
