Head tilt in 6 Ankole-Watusi cattle () with chronic exudative cornual sinusitis.

Ankole-Watusi cattle, , have a unique wide-based horn structure with a large communication to the frontal sinus compared to other cattle breeds. A total of 6 cases of cornual sinusitis presented at the Toronto Zoo and Disney's Animal Kingdom Lodge® and ® Theme Park with a head tilt. Clinically, 4 of the 6 cases had concurrent otitis at the time of initial clinical observation.

Canine distemper virus infection of vaccinal origin in a 14-week-old puppy.

The body of a 14-wk-old puppy () was submitted to the Animal Health Laboratory, University of Guelph, Ontario for postmortem examination following a history of intermittent anorexia and lethargy progressing to pyrexia, pruritic skin rash, mucoid nasal discharge, decreased mentation, dysphagia, muscle twitches, and focal seizures. Gross examination revealed rhinitis and pulmonary edema. Histologically, there was fibrinonecrotizing bronchopneumonia, tracheitis, and neutrophilic and lymphohistiocytic rhinitis; rarely within the cortical gray and white matter of the brain were small clusters of glial cells, with rare individual neutrophils in the choroid plexus.

Unilateral primary carcinoma of the kidney with central nervous system invasion and vertebral lysis in a cat.

Case Summary: A young adult female spayed domestic shorthair cat presented for acute hindlimb weakness and anorexia with a 1-month history of lethargy, hyporexia and weight loss. A mass was palpable in the caudolateral abdomen and the left hindlimb was diffusely edematous. Abdominal ultrasound showed hydronephrosis of the left kidney with suspected hydroureter and heterogeneous tissue in the dorsal abdomen.

Use of immune repertoire sequencing to resolve discordant microscopic and immunochemical findings in a case of T cell-rich large B cell lymphoma in a young dog.

Background: Lymphocytic neoplasms with frequent reactive lymphocytes are uncommonly reported in dogs, and can pose a diagnostic challenge. Different diagnostic modalities such as cytology, flow cytometry, histopathology, immunohistochemistry, and clonality testing, are sometimes required for a diagnosis. This report illustrates the value of using a multi-modal diagnostic approach to decipher a complex lymphocytic tumor, and introduces immune repertoire sequencing as a diagnostic adjunct.

Massive uterine lipoleiomyoma and leiomyoma in a miniature poodle bitch.

A 15-year-old, intact, female miniature poodle was presented for further evaluation of a large abdominal mass. Computed tomography was conducted to determine the origin of the mass and 2 large uterine masses were discovered. Ovariohysterectomy was performed and histopathological evaluation revealed a massive uterine lipoleiomyoma (27 × 17 × 15 cm), the largest recorded in the veterinary literature, and a smaller leiomyoma (7 × 5 × 4 cm).

Introducing forensic entomology in cases of suspected animal neglect.

Cases of arthropod-infested, abandoned or abused animals are sometimes brought to the attention of veterinarians by animal welfare authorities, with the requirement for a full postmortem examination towards criminal or civil proceedings. In these situations, entomology is an important support tool for the pathologists' investigation since the presence of arthropod life cycle stages serve as reliable forensic markers, especially for blowflies which form the first waves of activity following death. In the present study, 70 cadavers from a total of 544 referred to the Institute of Veterinary Science, University of Liverpool, between 2009 and 2014 displayed evidence of infestation.