Anatomical variations of the arrangement of structures at the pulmonary hilum: a cadaveric study

Abstract

The observations of the present study suggest that the pulmonary hilar morphology is extremely variable.

Cadaveric Study of Lung Anatomy: A Surgical Overview

“…Variations in the prevalence of multiple pulmonary veins (38.88%) are higher in the left compared to the right lungs. This finding is in concordance with previous studies by Murlimanju et al [6] (53.6%) and George et al [7] (80.2%) showed two pulmonary veins and 19.7% showed three pulmonary veins. The prevalence of more than two bronchi was seen in 5.5% of the right lungs and 15.38% of the left lungs in the present study.…”

“…Hence, the findings of the present study will be compared with these two studies done by Murlimanju et al [6] and George et al [7] In the present study, variations in hilar structures anatomy were seen in 38.88% of [6] in 2017, and George et al, in 2014. [7] Murlimanju et al [6] in their study reported 16.1 % of the right and 48.2% of the left lungs exhibited variations of structural arrangement. Similar to the previous study in the present variations in pulmonary hilar structures is seen higher in the left lungs.…”

“…The prevalence of multiple pulmonary veins was seen in 33.33% of the right lungs which is similar to that reported by George et al [7] They reported three pulmonary veins in 32.3% of the right lungs and more than three pulmonary veins in 4.6% of the right lungs. Murlimanju et al [6] have reported a very less prevalence of multiple pulmonary veins of 1.8% in the right lungs. Variations in the prevalence of multiple pulmonary veins (38.88%) are higher in the left compared to the right lungs.…”

“…George et al [7] reported the presence of two pulmonary arteries in 67.69% of the right lungs and three pulmonary arteries in 3.07% of the right lungs. Murlimanju et al [6] reported the presence of multiple pulmonary arteries in 8.9% of the right lungs. In the present study, we saw it in 19.44% of the right lungs which is higher compared to that reported by Murlimanju et al [6] while much lower compared to George et al [7] On the left lung, hilum multiple pulmonary arteries were observed in 7.69% of specimens almost similar to that reported by Murlimanju et al [6] (5.5%) and George et al [7] (5.47%).…”

“…Murlimanju et al [6] reported the presence of multiple pulmonary arteries in 8.9% of the right lungs. In the present study, we saw it in 19.44% of the right lungs which is higher compared to that reported by Murlimanju et al [6] while much lower compared to George et al [7] On the left lung, hilum multiple pulmonary arteries were observed in 7.69% of specimens almost similar to that reported by Murlimanju et al [6] (5.5%) and George et al [7] (5.47%). The prevalence of multiple pulmonary veins was seen in 33.33% of the right lungs which is similar to that reported by George et al [7] They reported three pulmonary veins in 32.3% of the right lungs and more than three pulmonary veins in 4.6% of the right lungs.…”