18F-sodium fluoride positron emission tomography is a sensitive imaging technique to detect atherosclerosis in Amazon parrots (Amazona spp).

Objective: To investigate and establish a protocol for 18F-sodium fluoride (18F-NaF) PET scan imaging in Amazon parrots for atherosclerosis diagnosis.

Methods: In this feasibility proof-of-concept study, 18F-NaF μPET scan and μCT scan were obtained on Hispaniolan (Amazona ventralis) and orange-winged Amazon parrots (A amazonica). A different μPET scan protocol was used for each species.

Contrast computed tomography dacryocystorhinography identifies nasolacrimal duct obstruction secondary to chronic dental disease in two chinchilla langeria.

Objective: To determine the impact of chronic dental disease on the nasolacrimal duct of chinchillas using contrast CT dacryocystorhinography.

Animals Studied: Two 12-year-old female chinchillas with uni- or bilateral ocular discharge and a history of chronic, moderate (Chinchilla 1, one-year) or severe (Chinchilla 2, three-years) dental disease.

Procedures: Contrast CT dacryocystorhinography was performed to identify abnormalities in the nasolacrimal duct and dentition, and to correlate those changes.

Epidemiologic, clinicopathologic, and diagnostic findings in pet rabbits with myxomatosis caused by the California MSW strain of myxoma virus: 11 cases (2022-2023).

Objective: To determine epidemiologic features of naturally occurring myxomatosis in domestic rabbits in California and to characterize clinicopathologic and diagnostic findings.

Animals: 11 client-owned rabbits, Oryctolagus cuniculus subsp domesticus.

Clinical Presentation: A prospective study of pet rabbits with myxomatosis seen at an exotic animal specialty clinic in Santa Cruz county, California, was conducted between January 1, 2022, and December 31, 2023.

Computed tomographic findings in canine and feline heart base tumors (25 cases).

Tumors located at the heart base are rare in dogs and cats and aortic body tumors (chemodectoma/paraganglioma), hemangiosarcoma, ectopic thyroid carcinoma, lymphoma, and other uncommon neoplasia can be found at that location. The objective of this retrospective case series was to describe the CT characteristics of canine and feline heart base tumors. CT studies of 21 dogs and four cats with histologically or cytologically confirmed heart base tumors were reviewed for size, location, shape, margination, contrast enhancement, adjacent neovascularization, invasion, mass effect, cavitary effusions, and metastasis.

Evaluation of mediastinoscopy for cranial mediastinal and tracheobronchial lymphadenectomy in canine cadavers.

Objective: To report technical feasibility and describe procedural details of a novel single incision minimally invasive approach to the mediastinum in cadaver dogs.

Study Design: Cadaveric study.

Animals: Large breed (25-40 kg) cadaver dogs (n = 10).

Left medial liver lobe torsion and postoperative acute gastric rupture in a 2.5-year-old male-castrated Flemish Giant rabbit (Oryctolagus cuniculus).

A 2.5-year-old male-castrated rabbit presented with acute abdominal pain, lethargy, and anorexia. Digital radiography revealed increased left-sided hepatomegaly, gastric dilation, and decreased peritoneal serosal detail.

Improving rat welfare through the development of a peribulbar anaesthesia technique for ophthalmic procedures: A preliminary study.

Rats are a commonly used animal model for the study of the pathogenesis and novel treatments of glaucoma, which is induced experimentally using invasive, painful procedures. Peribulbar anaesthesia (PBA) is frequently used in people and domestic animals prior to ophthalmic surgeries to provide excellent perioperative analgesia. Our goal was to develop a PBA technique adapted to rat anatomy, improving the welfare of animals used as a model for glaucoma.

Association of ultrasonographic features with histologic findings in 71 dogs with protein-losing nephropathy (2008-2018).

Objective: To determine whether ultrasonographic features in dogs with protein-losing nephropathy (PLN) were associated with renal biopsy findings and compare corticomedullary ratios between dogs with PLN versus non-renal disease.

Animals: 71 dogs with PLN and 33 dogs without renal disease.

Procedures: Medical records and archived ultrasonographic images for dogs with PLN that underwent renal biopsy between 2008 and 2018 were reviewed.

INTRAVENOUS CONTRAST-ENHANCED COMPUTED TOMOGRAPHY IN ADULT KOI ().

IV iodinated contrast is undocumented in koi (). IV contrast-enhanced computed tomography (CT) provides detailed imaging of the vascular structures and parenchymal organs. The goals of this study were to (1) document feasibility of IV contrast into the caudal vein, (2) determine distribution of contrast media and conspicuity of organs, (3) evaluate for differences in contrast uptake with two different doses of IV contrast, and (4) evaluate for contraindications of IV iodinated contrast in a small cohort of fish.

Choroidal neuroendocrine neoplasia in a dog.

Objective: To report onset and progression of clinical signs of a neuroendocrine neoplasm (NEN) presumed metastatic to the choroid in a dog.

Animals Studied: A 7.5-year-old female spayed German shepherd dog mix referred for advanced imaging and evaluation of a subretinal mass in the right eye.

INTRAVENOUS IOPAMIDOL PHARMACOKINETICS IN COMMON CARP ().

Koi carp (), a variety of common carp, has gained popularity as an ornamental fish worldwide. Their high monetary and sentimental value has necessitated the development of antemortem diagnostic options. Contrast-enhanced computed tomography (CT) scanning with intravenous iopamidol has been shown to be safe and diagnostically effective at a minimum dose of 480 mg iodine (I)/kg in koi.