INTRODUCTION: The proportion of patients with carcinoma in situ in whom invasive cancer will develop is not known. It is important for clinical decision making to know the outcome of these lesions. The same applies for studies assessing the effectiveness of chemoprevention treatment or endobronchial therapy. METHODS: The records of patients with a bronchial carcinoma in situ who had undergone autofluorescence bronchoscopic examinations at regular intervals during a follow-up period for at least 6 months were reviewed. Data were examined for the outcome of carcinoma in situ, and for the detection, course, and bronchoscopic findings of neoplastic lesions at other bronchial sites. RESULTS: Progression to carcinoma occurred in five of nine patients (56%) with a carcinoma in situ. Eight neoplastic lesions were detected at other sites in four of the nine patients (44%). In earlier biopsy specimens of two sites that later showed a severe dysplasia and a carcinoma, only normal epithelium was found. Biopsies had been performed at these sites because they were assessed as suspicious during autofluorescence bronchoscopy. CONCLUSION: The majority of sites showing a carcinoma in situ progressed to invasive carcinoma. A considerable portion of the patients had neoplastic lesions at other bronchial sites. The fluorescence pattern of the bronchial mucosa may reflect early changes that are not found at histopathologic examination, but which may progress to neoplastic growth.
INTRODUCTION: The proportion of patients with carcinoma in situ in whom invasive cancer will develop is not known. It is important for clinical decision making to know the outcome of these lesions. The same applies for studies assessing the effectiveness of chemoprevention treatment or endobronchial therapy. METHODS: The records of patients with a bronchial carcinoma in situ who had undergone autofluorescence bronchoscopic examinations at regular intervals during a follow-up period for at least 6 months were reviewed. Data were examined for the outcome of carcinoma in situ, and for the detection, course, and bronchoscopic findings of neoplastic lesions at other bronchial sites. RESULTS: Progression to carcinoma occurred in five of nine patients (56%) with a carcinoma in situ. Eight neoplastic lesions were detected at other sites in four of the nine patients (44%). In earlier biopsy specimens of two sites that later showed a severe dysplasia and a carcinoma, only normal epithelium was found. Biopsies had been performed at these sites because they were assessed as suspicious during autofluorescence bronchoscopy. CONCLUSION: The majority of sites showing a carcinoma in situ progressed to invasive carcinoma. A considerable portion of the patients had neoplastic lesions at other bronchial sites. The fluorescence pattern of the bronchial mucosa may reflect early changes that are not found at histopathologic examination, but which may progress to neoplastic growth.
Authors: Philip Jeremy George; Anindo K Banerjee; Catherine A Read; Caoihme O'Sullivan; Mary Falzon; Francesco Pezzella; Andrew G Nicholson; Penny Shaw; Geoff Laurent; Pamela H Rabbitts Journal: Thorax Date: 2006-07-06 Impact factor: 9.139
Authors: Steinn Jonsson; Marileila Varella-Garcia; York E Miller; Holly J Wolf; Tim Byers; Sarah Braudrick; Porntip Kiatsimkul; Marina Lewis; Timothy C Kennedy; Robert L Keith; Johannes Bjornsson; Annette McWilliams; Stephen Lam; Fred R Hirsch; Wilbur A Franklin Journal: Am J Respir Crit Care Med Date: 2007-11-07 Impact factor: 21.405
Authors: Stephen Lam; Beau Standish; Corisande Baldwin; Annette McWilliams; Jean leRiche; Adi Gazdar; Alex I Vitkin; Victor Yang; Norihiko Ikeda; Calum MacAulay Journal: Clin Cancer Res Date: 2008-04-01 Impact factor: 12.531
Authors: Kim M Lonergan; Raj Chari; Bradley P Coe; Ian M Wilson; Ming-Sound Tsao; Raymond T Ng; Calum Macaulay; Stephen Lam; Wan L Lam Journal: PLoS One Date: 2010-02-11 Impact factor: 3.240