Cheah F K, Sheppard M N, Hansell D M
Department of Radiology, Royal Brompton National Heart and Lung Hospital, London.
Clin Radiol. 1993 Aug;48(2):89-93. doi: 10.1016/s0009-9260(05)81078-5.
The utility of computed tomography (CT) is well established in patients with chronic interstitial lung disease. There are currently no descriptions of the CT appearances of diffuse pulmonary haemorrhage. The CT findings of six patients with diffuse pulmonary haemorrhage are presented. Pathological correlation from open lung biopsies in two of these patients provided a pathological basis for the CT appearances. All six patients had diffuse nodular opacities with no zonal predominance. The nodules were of uniform size in any single patient but varied (1-3 mm diam.) between patients. Patchy areas of 'ground-glass' opacification of the lung parenchyma due to recent haemorrhage was associated with apparent prominence of the segmental bronchi and obscured the background nodularity. The CT findings were similar in all six patients and, although not pathognomonic, awareness of the CT features described should raise the possibility of the diagnosis.
计算机断层扫描（CT）在慢性间质性肺疾病患者中的应用已得到充分证实。目前尚无关于弥漫性肺出血CT表现的描述。本文介绍了6例弥漫性肺出血患者的CT表现。其中2例患者经开胸肺活检进行病理对照，为CT表现提供了病理基础。所有6例患者均有弥漫性结节状阴影，无区域优势。单个患者的结节大小均匀，但不同患者之间有所差异（直径1 - 3毫米）。近期出血导致肺实质出现斑片状“磨玻璃”样阴影，同时伴有段支气管明显突出，掩盖了背景结节。6例患者的CT表现相似，虽然不具有特异性，但了解所描述的CT特征应能提高诊断的可能性。
