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The Usefulness of Ultrasound-Guided Fine Needle Aspiration Cytology of Impalpable Neck Nodes in Patients with Lung Cancer  

Kim, Hee Kyoo (Department of Internal Medicine, College of Medicine, Kosin University)
Ha, Seung In (Department of Internal Medicine, College of Medicine, Kosin University)
Kim, Yu Ri (Department of Internal Medicine, College of Medicine, Kosin University)
Park, Chan Bog (Department of Internal Medicine, College of Medicine, Kosin University)
Oak, Chul Ho (Department of Internal Medicine, College of Medicine, Kosin University)
Jang, Tae Won (Department of Internal Medicine, College of Medicine, Kosin University)
Jung, Maan Hong (Department of Internal Medicine, College of Medicine, Kosin University)
Oh, Kyung Seung (Department of Radiology, College of Medicine, Kosin University)
Chun, Bong Kwon (Department of Pathology, College of Medicine, Kosin University)
Lee, Min Ki (Department of Internal Medicine, College of Medicine, Pusan National University)
Park, Soon Kew (Department of Internal Medicine, College of Medicine, Pusan National University)
Publication Information
Tuberculosis and Respiratory Diseases / v.56, no.5, 2004 , pp. 505-513 More about this Journal
Abstract
Background : In lung cancer patients, the presence of metastatic neck nodes is a crucial indicator of inoperabilty. So thorough physical examination of neck is always mandatory, but sometimes those are hardly palpable even by the skillful hand. Ultrasonography is a useful diagnostic method in detection of small impalpable lymph nodes and in guidance of fine needle aspiration biopsy. In this study we evaluated the clinical usefulness of ultrasonography(USG) and ultrasound-guided fine needle aspiration cytology(US-FNA) in lung cancer patients without palpable neck nodes. Methods and Materials : From Sep 2002 to Sep 2003, 36 non-small cell lung cancer patients (20 adenocarcinoma, 16 squamous cell cancer) and 10 small cell lung cancer patients without palpable neck nodes on physical examiation were enrolled. patients who had contralateral mediastinal nodal enlargement(>1cm) on chest CT were excluded. After the routine check of USG on the neck, US-FNA was done in cases with enlarged neck nodes (${\geq}5mm$ in the short axis). The presence of enlarged lymph node on USG, and of malignant cells on cytology were evaluated by the histological type and the patients' clinical stage of lung cancer. Results : Among 36 non-small lung cell cancer patients, 14 (38.8%) had enlarged neck nodes on USG, and 5 of 10 small cell lung carcinoma patients. The mean diameter of the neck nodes was 9.8 mm (range, 7-12 mm). US-FNA of 14 non-small cell lung cancer patients revealed tumor cells in eight patients (57.1%). In 5 small cell lung cancer pateints, tumor cells were found in all cases. By the result of US-FNA, the clinical stage of 8 out of 36 (22.2%) non-small cell lung cancer patients had changed, including two cases of shift from the operable IIIa to the inoperable IIIb. In small cell lung cancer patients their clinical stage was not changed after US-FNA, but their pathological diagnosis was easily done in two cases, in whom endobronchial lesions were not found on bronchoscopy. Conclusions : USG and US-FNA of neck node seem to be safe, sensitive and cost-effective diagnostic tools in the evaluation of lung cancer patients without palpable neck nodes.
Keywords
Lung cancer; Neck node; Fine needle aspiration; Ultrasonogram;
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