International Journal of Research and Scientific Innovation (IJRSI)
Uncommon Observation of a Trilobed Left Lung: A Cadaveric Case Report on Pulmonary Anatomical Variation and Its Embryological, and Clinical Perspectives
Published October 15, 2025 • Vol. 12, Issue 9, pp. 4064–4073Open Access
DOI: 10.51244/IJRSI.2025.120800366
Abstract
We present a rare case of a trilobed left lung, where the left lung possesses three distinct lobes separated by both horizontal and oblique fissures, mirroring the typical structure of the right lung. This anatomical variation was discovered during a routine cadaveric dissection at Nnamdi Azikiwe University. The study aims to document and describe this variation, compare it with classical lung anatomy, explore potential embryological causes, and highlight its clinical relevance. The discovery of this variation has significant implications for clinical practice, particularly in radiological diagnosis, thoracic surgery, and pulmonology. Recognizing such variations is crucial to avoid diagnostic errors, surgical complications, or misinterpretation in imaging. This case reinforces the importance of cadaveric dissection in anatomical education and highlights the need for region-specific anatomical documentation.
Keywords: Anatomical variation, Left lung, Trilobed lung, Cadaveric dissection, Clinical implications
| Journal | International Journal of Research and Scientific Innovation (IJRSI) |
|---|---|
| ISSN | 2321-2705 |
| Volume / Issue | Volume 12, Issue 9 |
| Pages | 4064–4073 |
| Publication date | October 15, 2025 |
| DOI | 10.51244/IJRSI.2025.120800366 |
| Publisher | RSIS International |
| License | Open Access |
How to cite this article
Promise Nwachinemerem Okpechi, Nkiruka Lilian Okwuanga, Michael Obinna Onyewuchi, Augustine Alobu Ekoh, & Onyinyechi Queen Promise (2025). Uncommon Observation of a Trilobed Left Lung: A Cadaveric Case Report on Pulmonary Anatomical Variation and Its Embryological, and Clinical Perspectives. International Journal of Research and Scientific Innovation (IJRSI), 12(9), 4064-4073. https://doi.org/10.51244/IJRSI.2025.120800366
BibTeX
@article{Promise2025,
title = {Uncommon Observation of a Trilobed Left Lung: A Cadaveric Case Report on Pulmonary Anatomical Variation and Its Embryological, and Clinical Perspectives},
author = {Promise Nwachinemerem Okpechi and Nkiruka Lilian Okwuanga and Michael Obinna Onyewuchi and Augustine Alobu Ekoh and Onyinyechi Queen Promise},
journal = {International Journal of Research and Scientific Innovation (IJRSI)},
volume = {12},
number = {9},
pages = {4064--4073},
year = {2025},
doi = {10.51244/IJRSI.2025.120800366},
publisher = {RSIS International}
}