Abstract
Background. Making a preoperative pathologic diagnosis in patients with small lung nodules remains challenging. We have developed a new, noninvasive bronchoscopic microsampling probe to examine biochemical substances in epithelial lining fluid. We used this probe to measure tumor markers in fluid from tissues surrounding lung nodules less than 30 mm in diameter to test its adjunctive diagnostic utility in lung cancer. Methods. In 12 patients, epithelial lining fluid was collected in triplicate or duplicate from tissue within 2 cm of small peripheral lung nodules and from the contralateral lung. The diagnosis of adenocarcinoma was surgically confirmed in all patients. Fifteen patients without lung cancer served as controls. Concentrations of carcinoembryonic antigen, cytokeratin fragment 19, and sialyl SSEA-1 were measured in the fluid. Results. Carcinoembryonic antigen and cytokeratin fragment 19 concentrations were significantly higher in fluid near the nodules (median, 8.7 and 87.2 ng/mg, respectively) than on the contralateral sides (median, 1.5 and 3.7 ng/mg, respectively) or in fluid collected from the controls (median, 2.0 and 2.8 ng/mg, respectively). Conclusions. Measurements of carcinoembryonic antigen and cytokeratin fragment 19 collected by our microsampling probe may be a useful diagnostic adjunct in patients with small peripheral lung nodules.
| Original language | English |
|---|---|
| Pages (from-to) | 1668-1672 |
| Number of pages | 5 |
| Journal | Annals of Thoracic Surgery |
| Volume | 76 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2003 Nov |
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ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Surgery
Cite this
Contributions of Bronchoscopic Microsampling in the Supplemental Diagnosis of Small Peripheral Lung Carcinoma. / Watanabe, Masazumi; Ishizaka, Akitoshi; Ikeda, Eiji; Ohashi, Akira; Kobayashi, Koichi.
In: Annals of Thoracic Surgery, Vol. 76, No. 5, 11.2003, p. 1668-1672.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Contributions of Bronchoscopic Microsampling in the Supplemental Diagnosis of Small Peripheral Lung Carcinoma
AU - Watanabe, Masazumi
AU - Ishizaka, Akitoshi
AU - Ikeda, Eiji
AU - Ohashi, Akira
AU - Kobayashi, Koichi
PY - 2003/11
Y1 - 2003/11
N2 - Background. Making a preoperative pathologic diagnosis in patients with small lung nodules remains challenging. We have developed a new, noninvasive bronchoscopic microsampling probe to examine biochemical substances in epithelial lining fluid. We used this probe to measure tumor markers in fluid from tissues surrounding lung nodules less than 30 mm in diameter to test its adjunctive diagnostic utility in lung cancer. Methods. In 12 patients, epithelial lining fluid was collected in triplicate or duplicate from tissue within 2 cm of small peripheral lung nodules and from the contralateral lung. The diagnosis of adenocarcinoma was surgically confirmed in all patients. Fifteen patients without lung cancer served as controls. Concentrations of carcinoembryonic antigen, cytokeratin fragment 19, and sialyl SSEA-1 were measured in the fluid. Results. Carcinoembryonic antigen and cytokeratin fragment 19 concentrations were significantly higher in fluid near the nodules (median, 8.7 and 87.2 ng/mg, respectively) than on the contralateral sides (median, 1.5 and 3.7 ng/mg, respectively) or in fluid collected from the controls (median, 2.0 and 2.8 ng/mg, respectively). Conclusions. Measurements of carcinoembryonic antigen and cytokeratin fragment 19 collected by our microsampling probe may be a useful diagnostic adjunct in patients with small peripheral lung nodules.
AB - Background. Making a preoperative pathologic diagnosis in patients with small lung nodules remains challenging. We have developed a new, noninvasive bronchoscopic microsampling probe to examine biochemical substances in epithelial lining fluid. We used this probe to measure tumor markers in fluid from tissues surrounding lung nodules less than 30 mm in diameter to test its adjunctive diagnostic utility in lung cancer. Methods. In 12 patients, epithelial lining fluid was collected in triplicate or duplicate from tissue within 2 cm of small peripheral lung nodules and from the contralateral lung. The diagnosis of adenocarcinoma was surgically confirmed in all patients. Fifteen patients without lung cancer served as controls. Concentrations of carcinoembryonic antigen, cytokeratin fragment 19, and sialyl SSEA-1 were measured in the fluid. Results. Carcinoembryonic antigen and cytokeratin fragment 19 concentrations were significantly higher in fluid near the nodules (median, 8.7 and 87.2 ng/mg, respectively) than on the contralateral sides (median, 1.5 and 3.7 ng/mg, respectively) or in fluid collected from the controls (median, 2.0 and 2.8 ng/mg, respectively). Conclusions. Measurements of carcinoembryonic antigen and cytokeratin fragment 19 collected by our microsampling probe may be a useful diagnostic adjunct in patients with small peripheral lung nodules.
UR - http://www.scopus.com/inward/record.url?scp=0242721206&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0242721206&partnerID=8YFLogxK
U2 - 10.1016/S0003-4975(03)01015-4
DO - 10.1016/S0003-4975(03)01015-4
M3 - Article
C2 - 14602308
AN - SCOPUS:0242721206
VL - 76
SP - 1668
EP - 1672
JO - Annals of Thoracic Surgery
JF - Annals of Thoracic Surgery
SN - 0003-4975
IS - 5
ER -