Morphological variation in the lobar pattern and in the fissures of the lungs

case report

Abstract

Study: Case Report. Importance: Lobos and accessory fissures in the lungs can induce errors of interpretation and diagnosis, as well as favor the spread of pathologies such as pneumonia to adjacent lobes. Thus, the confirmation of these anatomical alterations can collaborate in clinical diagnoses and surgical procedures. Comments: We report a rare case of anatomical variation in the lobes and fissures of the lungs. The left lung showed an accessory middle lobe and a complete horizontal fissure. On the other hand, the right lung had two incomplete accessory fissures located inferiorly in the costal face of the middle lobe. In addition, we observed that the left lung hilum contained two lobar bronchi (upper and lower), one accessory lobar bronchus and three pulmonary arteries. Knowledge of the anatomical variations reported here is fundamental, as they help health professionals in diagnoses and therapeutic and surgical decisions.