P. Pierard et al., Synchronous roentgenographically occult lung carcinoma in patients with resectable primary lung cancer, CHEST, 117(3), 2000, pp. 779-785
Citations number
27
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
Objective: To assess the prevalence of synchronous roentgenographically occ
ult lung carcinoma (ROLC) in patients with resectable roentgenographically
visible lung cancer (RVLC).
Methods: Patients undergoing surgery for RVLC in the same University Hospit
al were prospectively cly evaluated before surgery by fluorescence bronchos
copy under local anesthesia to detect synchronous ROLC. All abnormal areas,
with the exception of the RVLC, had biopsies made.
Results: From June 1996 to January 1999, 43 patients (male/female ratio: 1.
7/1.0) were evaluated before lobectomy (n = 34) or pneumonectomy (n = 10) f
or 44 primary RVLC. There were 10 T1N0, 19 T2N0, 1 T1N1, 9 T2N1, 1 T3N0, 3
T1N2, and 1 T3N1 lesions. The histologic type was mainly squamous carcinoma
(n = 21) and adenocarcinoma (n = 14). All but two patients were smokers or
ex-smokers (mean +/- SD, 48 +/- 28 pack-years). A total of 177 endobronchi
al biopsies were performed (4.1 +/- 2.5); 8 were too small to be informativ
e, 43 showed non-preneoplastic alterations, and 50 were normal. There were
7 basal cell hyperplasias, 56 metaplasias, 9 dysplasias, and 4 carcinomas i
n situ (CIS). All the dysplasias and CIS lesions were observed in eight sub
jects. The synchronous CIS were treated by surgery (n = 1) or localized the
rapeutic modalities (n = 3).
Conclusions: The high prevalence of synchronous early lung cancers (9.3%) a
s well as metaplasia and dysplasia in this series of patients with resectab
le RVLC suggests that fluorescence bronchoscopy may be a useful adjunct in
the preoperative evaluation of lung cancer.