Morphological characteristics of the in formalized corps: an observational study

Introduction: The presence of a hepatic peduncle in the right lobe is characteristic of an accessory lobe called the Riedel lobe. This lobe is an anatomical anomaly prevalent in females. Objective: To acquire knowledge of the anatomical anomaly, the objective was to conduct a study of the morphological characteristics of the Riedel lobe in a formalized corpse. Methods: The work is based on a descriptive and observational study. The sample consisted of a formalized male corpse from the Human Anatomy Laboratory of the University of Brazil. A digital caliper was used to measure the hepatic and accessory lobes. The study was carried out from August to December 2019. The usual dissection of the peritoneal cavity was performed, leaving the largest gland in the human body exposed, mainly the visceral face of the liver. Results and Conclusion: Riedel's lobe is described as a palpable mass in the upper right quadrant below the lower ribs, it is not considered a true lobe, but rather a descending extension of the right lobe of the liver. There are not many studies on Riedel's lobe, therefore, more morphological and morphometric studies are suggested as well as histopathological studies of Riedel's lobe and right lobe parenchyma to compare liver cells and liver tissue functionality.