Editorial Type:
Article Category: Case Report
 | 
Online Publication Date: May 06, 2021

Diagnosis and Surgical Management of Cholecystolithiasis in Two Adult Inland Bearded Dragons (Pogona vitticeps)

Dr med vet, IPSAV (Zoological Medicine),
DVM, IPSAV (Zoological Medicine),
DVM, IPSAV (Zoological Medicine), DVSc, DACZM,
Dr med vet, IPSAV (Zoological Medicine), DVSc, DACZM, DECZM (Zoo Health Management),
Dr med vet iPSAV,
DVM, DES, DVSc, DACZM,
DVM, PhD, DACVR, and
Dr med vet, IPSAV (Zoological Medicine), CES, DACZM
Page Range: 18 – 24
DOI: 10.5818/19-09-213.1
Save
Download PDF

Abstract

Two male inland bearded dragons (Pogona vitticeps) of 5 and 6 yr of age were presented for anorexia with and without lethargy, respectively. In both cases, a firm, spherical, and mobile mass, measuring 2 cm in diameter, was palpated in the cranio-medial coelom. Radiographs were unremarkable. Ultrasonographic evaluation was highly suggestive of cholecystolithiasis. Coeliotomy confirmed the presence of a markedly enlarged gallbladder containing a cholecystolith in both cases, and cholecystectomies were performed. Both dragons resumed eating after 1–7 days and were doing well 3–6 months postoperatively. The gallbladder wall was unremarkable on histology, and the choleliths were composed of protein and calcium carbonate crystals. Cholecystolithiasis in bearded dragons has been the subject of very few case reports, probably due to its low occurrence. The lack of available data on the diagnosis and management may have led to this condition being underdiagnosed in this species. Ultrasonography was essential to the clinical diagnosis of cholecystolithiasis in our two cases and should be recommended as part of the diagnostic approach of bearded dragons with cranio-medial coelomic masses.

  • Download PDF
<bold>Figure 1</bold>
Figure 1

Ultrasonographic image of the gallbladder in a longitudinal plane containing a large cholelith in the inland bearded dragon (Pogona vitticeps) from clinical report 1. The gallbladder is markedly distended, measuring 2.95 cm in length and 1.55 cm in height. The cholelith is characterized by a thick peripheral hypoechoic band surrounding an irregularly shaped hyperechoic center, and it occupies the entire lumen of the gallbladder. Cranial to the gallbladder, normal hepatic parenchyma can be observed (arrow). The ultrasonographic examination of the gallbladder was highly suggestive of cholecystolithiasis.


<bold>Figure 2</bold>
Figure 2

Perioperative photograph of the retracted distended gallbladder containing a large cholelith (bottom right) in the first inland bearded dragon (Pogona vitticeps) (clinical report 1). After paramedian incision, the skin was retracted (green retractors) revealing a markedly enlarged gallbladder (arrow) with prominent vasculature. A large and firm cholelith was palpable within the gallbladder.