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An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

European Journal of Pharmaceutical and Medical Research (EJPMR) has indexed with various reputed international bodies like : Google Scholar , Indian Science Publications , InfoBase Index (In Process) , SOCOLAR, China , Research Bible, Fuchu, Tokyo. JAPAN , International Society for Research activity (ISRA) , Scientific Indexing Services (SIS) , Polish Scholarly Bibliography , Global Impact Factor (GIF) (Under Process) , Universal Impact Factor , International Scientific Indexing (ISI), UAE  , Index Copernicus , CAS (A Division of American Chemical Society) USA (Under Process) , Directory of Open Access Journal (DOAJ, Sweden, in process) , UDLedge Science Citation Index , CiteFactor , Directory Of Research Journal Indexing (DRJI) , Indian citation Index (ICI) , Journal Index (JI, Under Process) , Directory of abstract indexing for Journals (DAIJ) , Open Access Journals (Under Process) , Impact Factor Services For International Journals (IFSIJ) , Cosmos Impact Factor , Jour Informatics (Under Process) , Eurasian Scientific Journal Index (ESJI) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Pubmed Database [NLM ID: 101669306] (Under Process) , IP Indexing (IP Value 2.40) , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , Scope Database , Academia , 

 ISSN 2394-3211

Impact Factor: 7.065

 ICV - 79.57



Gomathi Ramakrishnan*, Dhivyalakshmi Gnanasekaran, Aruna S. and Murugesa Bharathi O.


Background: The lungs situated in the thoracic cavity on either side of the mediastinum are the vital organs of respiration. Knowledge about the fissures, lobes, and hilar anatomy of the lung is essential for surgeons during the resection of lung segments in lung cancer, for radiologists to avoid misinterpretation of the normal anatomical variations of lungs as lung pathologies. The knowledge of dimensions of principal bronchi is of significant use in bronchoscopy and also in evaluating the etiology of severe pulmonary diseases. Objectives: To study the variations in lobes, fissures, and hilar structures and to measure the luminal diameters of the principal bronchus at the bifurcation and the hilum in both lungs. Method: It is a cross-sectional descriptive study. Twenty-five lung specimens along with trachea & principal bronchus from the routine autopsy were studied. Variations in the lung, principal bronchi, and hilar structures were noted. Vertical and anteroposterior diameters of principal bronchi were taken at the tracheal bifurcation and hilum. Result: Among the fifty specimens, 10% had an accessory fissure, and 8% of right lungs had an absent horizontal fissure. In 14% of specimens, there was bifurcation of the pulmonary artery and in 22% there was bifurcation of the pulmonary vein just before entering the hila. In 12% of lung specimens, the principal bronchus is divided into lobar bronchi either at the level of tracheal bifurcation or just before entering the hilum. There was no progressive narrowing of principal bronchi on both sides but the luminal diameter of the left side bronchus was less compared to the right side. Discussion: The knowledge of these variations is essential to diagnose the site of lesions and the luminal diameter of bronchi is useful in diagnostic and therapeutic bronchoscopic procedures. Conclusion: This study will be helpful for clinicians, surgeons, and radiologists for diagnostic procedures using bronchoscopy, diagnosis & planning of treatment modalities like lung or segmental or lobar resection surgeries in various lung diseases.

Keywords: lung, principal bronchus, pulmonary artery, pulmonary vein.

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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing Scholar Article Journal Index (SAJI) International Scientific Indexing ( ISI ) Scope Database Academia