Abstract
Free coelomic fluid can be a physiologic or pathologic finding in snakes. In this study, ultrasonography was used to assess the presence, volume, and type of coelomic fluid in 18 (16 females, 2 males) clinically healthy corn snakes (Pantherophis guttatus) using a semiquantitative scoring system. Each snake was divided into five equal regions (R1-R5) by length (from rostrum to vent) and fluid volume was scored on a scale of 0 to 4. Coelomic fluid was sampled when possible and cytologic analysis was performed. The majority of snakes (16/18) were found to have some degree of free coelomic fluid. The coelomic fluid samples that were collected (n= 6) were classified as transudates, acellular or primarily lymphocytic. Fluid was most likely to be found in R3 compared with all other regions and least likely to be found in R1 compared with R2, R3, and R4. A higher score of volume was found in R3 compared with R1 and R5. This study describes the distribution and abundance of coelomic fluid in snakes, as well as a method for point of care ultrasound (POCUS) in this species.
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