Morfologia comparativa do peritônio do Tamandua tetradactyla e Bradypus variegatus e suas implicações na abordagem cirúrgica.

Abstract

Abdominal surgeries encompass an approach to the peritoneum, which exerts functionssuchas providing protection from external impacts, tissue resistance, and the production of intracavitary fluids. The characterization of the peritoneum of anteater and sloth, inits macro-and microscopic aspects, will support surgical approaches in these species. Four adultspecimens of Tamandua tetradactyla and three adult specimens of Bradypus variegatus were used, and the following types of suture patterns were performed: simple separate, separate Sultan (stitch in “X”) and continuous Reverdin. Membrane fragments were harvested for histological evaluation. Peritoneal macroscopy of the two species revealed different degreesof thickness, presence, and connection with the omentum. Thus, suture patterns were chosen considering the anatomical variation of the species. Microscopic results were similar, being composed of both a mesothelial layer of sidewalk cells and unshaped dense connective tissue,and revealed little variation between the species.