Morphometric Study And Variations of the Lobes and Fissures of the Lungs

ABSTRACT The fissures form the boundaries for the lobes of the lungs, knowledge of their position is necessary for the appreciation of lobar anatomy and thus for locating the bronchopulmonary segments which is significant both anatomically and clinically. Hence, our main objective is to find out the variations in the fissures and lobes of the lungs as well as prevalence of the variation. Total 100 lungs were included in present study. The dissection was performed in the dissection hall of Anatomy Department, MGM Medical College, Kamothe, Navi Mumbai. The length of oblique fissure of left lung is longer than that of right lung, the left lung shows more normal pattern of fissures & lobes than that of right. The presence of accessory fissure in case of right lung was 12 % & left lung was 22%, which shows that the accessory fissure was seen more on the left lungs. Introduction:Lungs are divided into lobes by the oblique and the transverse fissures. The oblique fissure cuts the vertebral border of both the lungs at the level of 4th or 5th thoracic spine. Horizontal fissure, seen only in the right lung begins laterally at the oblique fissure and runs almost transversely across the costal surface t