Zhang Lanhua, Qiu Shixiong, Tang Cui, Xu Jinming
Department of Radiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, P.R. China.
Exp Ther Med. 2017 Jul;14(1):87-90. doi: 10.3892/etm.2017.4449. Epub 2017 May 11.
Adult community-acquired pneumonia (ACAP) is the most prevalent pulmonary infectious disease that may be asymptomatic or have varying clinical presentations. Patients with ACAP often present with enlarged mediastinal lymph nodes on their chest computed tomography images. However, large irregular swollen lymph nodes are rarely reported in ACAP, and may therefore be confused with enlarged lymph node masses. In the present case report, the patient presented with lymph node masses, which were ameliorated to their normal size following antimicrobial treatment. The patient was 24 years old and otherwise healthy, which led to a pronounced and excessive immune response to pneumonia in the lymph nodes. Atypical pneumonia is difficult to diagnose based on imaging features. The present case report demonstrates that patients with pneumonia may present with unusually enlarged mediastinal lymph nodes, which are most likely, a result of a strong immune response to pneumonia.
成人社区获得性肺炎（ACAP）是最常见的肺部传染病，可能无症状或有不同的临床表现。ACAP患者的胸部计算机断层扫描图像上常出现纵隔淋巴结肿大。然而，ACAP中很少报道有大的不规则肿大淋巴结，因此可能会与肿大的淋巴结肿块相混淆。在本病例报告中，患者出现淋巴结肿块，经抗菌治疗后恢复至正常大小。该患者24岁，身体健康，这导致其淋巴结对肺炎产生明显且过度的免疫反应。非典型肺炎很难根据影像学特征进行诊断。本病例报告表明，肺炎患者可能出现异常肿大的纵隔淋巴结，这很可能是对肺炎产生强烈免疫反应的结果。
