Eun-A Jeong; An-na Bae; Jong Ho Park; Jae-Ho Lee & Yu-Ran Heo

The purpose of this study is to elucidate the variations in human lung fissures for clinical benefits. The lungs are a pair of respiratory organs located on either side of the chest cavity. The right lung is typically divided into three lobes by the oblique fissure and horizontal fissure, while the left lung is divided into two lobes by the oblique fissure. In this study, variations in lung fissures were observed in both lungs of a 96-year-old formalin-preserved Korean male cadaver. These lung fissures were observed as additional, complete, incomplete, or absent. The right lung observed an absent horizontal fissure and an incomplete accessory fissure, while the left lung showed an incomplete oblique fissure and an accessory fissure known as the left minor fissure. From a clinical perspective, it is important for clinicians to be aware of these variations in lung fissures. Incomplete lung fissures, for example, have the potential to facilitate the spread of diseases like pneumonia to adjacent lobes. Additionally, accessory fissures can sometimes be mistaken for other conditions such as pleural scars or blisters, requiring careful differentiation.

KEY WORDS: Fissure of the lung; Anatomical variation; Accessory fissure; Incomplete fissure; Korean cadaver.

JEONG, E.-A.; BAE, A.-N.; PARK, J.-H.; LEE, J-H. & HEO, Y.-R. Bilateral variation of human pulmonary fissure: A study in Korean cadaver. Int. J. Morphol., 43(3):732-736, 2025.