Home | About CytoJournalEditorial Board | Archived articles | Search CytoJ Articles | Subscribe | Peer review policies | CytoJournal Quiz Cases
  Reviewer corner | Author corner | OA Steward’s corner | CF member’s corner | Join as CF member | Manuscript submission | Open Access (OA) Advocacy
Home
CytoJournal All 'FULL TEXT' in HTML are FREE under "open access" charter of CytoJournal.
To login for downloading any PDF OR to request TOC (Table of Content) by e-mail, please click here
Home Email this page Print this page Small font size Default font size Increase font size Cytopathology Foundation
Navigate Here
 »   Next article
 »   Previous article
 »   Table of Contents

Resource Links
 »   Similar in PUBMED
 »  Search Pubmed for
 »  Search in Google Scholar for
 »Related articles
 »   Citation Manager
 »   Access Statistics
 »   Reader Comments
 »   Email Alert *
 »   Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed5268    
    Printed32    
    Emailed0    
    PDF Downloaded21    
    Comments [Add]    

Recommend this journal

 

 RESEARCH ARTICLE
CytoJournal 2014,  11:32

Diagnostic accuracy of bronchial brush cytology and the added value of immunohistochemistry and fluorescence in situ hybridization of pulmonary neuroendocrine tumors


1 Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, United States
2 Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
3 Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, United States

Correspondence Address:
Jordan P Reynolds
Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH
United States
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1742-6413.146120

Rights and Permissions

Background: Bronchial brush (BB) cytology carries low sensitivity for detecting neuroendocrine carcinomas (NECs), including typical carcinoid (TC) tumors of the lung. We aimed to investigate the detection of neuroendocrine tumors including TC through BB routine cytology cell block (CB), immunohistochemistry (IHC), and fluorescence in situ hybridization (FISH). Materials and Methods: A SNOMED search showed 187 lung biopsy or resection specimens from 2008 through 2011 containing neuroendocrine or carcinoid in the diagnosis. Residual BB specimens retained in PreservCyt were used to prepare a ThinPrep slide for FISH analysis. CBs were stained with H and E and IHC for chromogranin and synaptophysin. Results: Of the 187 cases, 16 had residual BB material available within 1 year of diagnosis and were used in CB preparation for IHC and FISH slides. Cytologic evaluation determined 1 case positive for malignancy (small cell lung carcinoma [SCLC]), 1 suspicious for adenocarcinoma, and 14 negative for malignancy. On the basis of histologic diagnosis, FISH was performed. SCLC showed polysomy (86% abnormal cells); 2 TC tumors showed a gain of 7p12 (15% abnormal cells) and a gain of 5q15 (72% abnormal cells), respectively. Two cases had CBs with positive immunoreactivity for chromogranin and synaptophysin. The sensitivity for detection of NEC was 18.8%, 15.4%, and 25% for cytologic evaluation, CB, and FISH, respectively. Conclusion: Neuroendocrine tumors, including TC are difficult to detect with BB cytologic evaluation, most likely because tumor cells lack in the specimen. Assessment of further studies is needed to explore the role of cytology and ancillary methods for detection of these tumors.






[FULL TEXT] [PDF]*


        
Print this article     Email this article

  Site Map | Copyright and Disclaimer
© 2007 - CytoJournal | A journal by Cytopathology Foundation Inc with Wolters Kluwer - Medknow
New version online since 1st July '08
Open Access