Webb W R, Gamsu G
AJR Am J Roentgenol. 1981 Jan;136(1):27-31. doi: 10.2214/ajr.136.1.27.
Cavitary pulmonary nodules rarely occur in patients with systemic lupus erythematosus and the lupuslike syndrome associated with mixed connective tissue disease. Although it has been suggested that such cavitary nodules represent areas of vasculitis and ischemic necrosis, five of seven occurrences of cavitary nodules in a series of six patients with systemic lupus erythematosus or mixed connective tissue disease proved to be the result of infection or pulmonary embolism. The causes in the other two cases are unknown, but no attempt was made to obtain a biopsy in either instance. It was concluded that vasculitis with ischemic necrosis is not a common cause of cavitary pulmonary nodules in patients with lupus.
空洞性肺结节在系统性红斑狼疮及与混合性结缔组织病相关的狼疮样综合征患者中很少见。尽管有人认为这种空洞性结节代表血管炎和缺血性坏死区域，但在一系列6例系统性红斑狼疮或混合性结缔组织病患者中，7次出现的空洞性结节中有5次被证明是感染或肺栓塞的结果。另外两例的病因不明，但在这两例中均未尝试进行活检。得出的结论是，缺血性坏死性血管炎不是狼疮患者空洞性肺结节的常见病因。
