Ultrasonographic, endoscopic and histological appearance of the caecum in clinically healthy cats

Journal of Feline Medicine and Surgery
Harriet HahnPascaline Pey

Abstract

Objectives The aim of the study was to describe the ultrasonographic and endoscopic appearance and characteristics of the caecum in asymptomatic cats, and to correlate these findings with histology. Methods Ex vivo ultrasonographic and histologic evaluations of a fresh caecum were initially performed. Then, 20 asymptomatic cats, privately owned or originating from a reproductive colony, were recruited. All cats had an ultrasonographic examination of the ileocaecocolic junction, where the thickness of the caecal wall, ileocolic lymph nodes and the echogenicity of the local fat were assessed. They all underwent a colonoscopy with a macroscopic assessment of the mucosa and biopsies for histology. Results An ultrasonographic hypoechoic nodular inner layer, which corresponded to the coalescence of multiple lymphoid follicles originating from the submucosa and protruding in the mucosa on histology, was visible in all parts of the caecum. The combined mucosa and submucosa was measured ultrasonographically and defined as the follicular layer. Although all cats were asymptomatic, 3/19 cats showed mild caecal inflammation on histology. The most discriminatory ultrasonographic parameter in assessing this subclinical inflammation was the t...Continue Reading

References

Jan 1, 1974·Acta Anatomica·M M Mu, R Lingam
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Feb 19, 1999·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·S M NewellJ M Harrison
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Feb 7, 2008·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Elke SchreursJimmy H Saunders
Jun 2, 2009·Journal of Feline Medicine and Surgery·Diane AddieMarian C Horzinek
Apr 15, 2010·Journal of Veterinary Internal Medicine·R J WashabauUNKNOWN WSAVA International Gastrointestinal Standardization Group
May 11, 2011·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Olivier TaeymansCynthia R Webster

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Citations

Feb 3, 2018·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Maurizio LongoJenna Richardson
Oct 28, 2019·Journal of Feline Medicine and Surgery·Sally Griffin

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Methods Mentioned

BETA
light microscopy
biopsy
PCR
biopsies

Software Mentioned

Image J
SAS

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