Endobronchial Ultrasound-guided Transbronchial Needle Aspiration in Anthracosis of Mediastinal Lymph Nodes: Correlation with Computed Tomography Findings
J Kirchner, M Broll, C Murach, P Müller, N Pomjanski, S Biesterfeld, D Liermann, R Kickuth
Hong Kong J Radiol 2014;17:162-7
DOI: 10.12809/hkjr1413225
Objectives: To demonstrate the computed tomography findings of endobronchial ultrasound-guided transbronchial needle aspiration–proven hilar and mediastinal lymph node anthracosis.
Methods: We retrospectively studied the computed tomography (multislice computed tomography, 64 x 0.75 mm slice collimation, tube voltage 120 kV) findings in 49 patients (37 males, 12 females) with endobronchial ultrasound-guided transbronchial needle aspiration–confirmed diagnosis of 89 anthracotic lymph nodes.
Results: Overall, 58.4% of the cytologically proven anthracotic lymph nodes showed enlargement with a mean short axis diameter of 11.1 mm (range, 5-23 mm). The majority of the anthracotic lymph nodes were oval (86.5%), 7.9% were round, and 5.6% were polycyclic in shape. Confluence of anthracotic lymph nodes was seen in 28.1% of the lymph nodes, and patchy hyperdensities–like calcifications were observed in only 18.0%; none of the lymph nodes showed necrosis.
Conclusion: Lymph node anthracosis often results in enlargement of hilar and mediastinal lymph nodes.
中文摘要
支氣管內超聲引導下經支氣管針吸活檢矽肺縱隔淋巴結：與電腦斷層掃描表現的相關性
J Kirchner、M Broll、C Murach、P Müller、N Pomjanski、S Biesterfeld、D Liermann、R Kickuth
目的：顯示支氣管內超聲引導下經支氣管針吸活檢肺門及縱隔淋巴結證實的矽肺的電腦斷層掃描結果。
方法：回顧研究49名（37男、12女）支氣管內超聲引導下經支氣管針吸活檢確診的矽肺患者89個淋巴結的電腦斷層掃描（多層CT，64 × 0.75 mm準直寬度，管電壓120 kV）表現。
結果：總體上，經細胞學證實的矽肺淋巴結中的58.4%平均短軸直徑擴大了11.1 mm（介乎5-23 mm）。大部分矽肺淋巴結呈橢圓形（86.5%），7.9%呈圓形，5.6%呈多環形狀。矽肺淋巴結融合佔28.1%，18.0%呈斑片狀高密度鈣化；並無淋巴結壞死。
結論：矽肺淋巴結往往會造成肺門及縱隔淋巴結腫大。