Population reduction or eradication of domestic or non-domestic species may be required to address their impacts on the environment, other species, or human interests. Firearms are often used to accomplish these practical management objectives, and there is increased concern that the methods used may compromise animal welfare. We document the accuracy and humaneness of gunshot placement to the brain and cervical vertebrae of Philippine deer ( Rusa marianna ) on Guam during depopulation activities as a model for meeting AVMA standards of euthanasia under field conditions (e.g., animal is not in hand). Deer were shot with a .223 caliber rifle from 10–125 m and approached immediately (<20 s) for assessment. A subset of adult deer was further evaluated for physiological responses including cessation of heart rate, respiration, ocular reflexes, and post-mortem spasms. All deer shot in the brain (n = 132) and upper cervical spine (C1—C3; n = 18) died immediately due to the destruction of the brain or spinal tissue. Shot placements were all within 1.9 cm of the point of aim (i.e., the center of the target region). The accuracy and immediate insensibility resulting from targeting of C1—C3 demonstrates that this is an alternative target site when animal positioning is not optimal for targeting the brain, or there is a need to preserve brain tissue (e.g., Chronic Wasting Disease testing). While targeting of C4 –C7 vertebrae (n = 6) was accurate and resulted in immediate incapacitation, the failure to produce immediate insensibility does not support the use of this shot placement when upper cervical or brain shot placement is an option. It is reasonable to achieve sufficient accuracy to target the brain or upper cervical vertebrae of deer under field conditions and meet standards of euthanasia while accomplishing management objectives.

Case summary A 16-year-old domestic shorthair cat was evaluated for acute-onset right pelvic limb monoparesis localized to the sciatic nerve. MRI revealed a homogeneously contrast-enhancing, well-demarcated mass effacing the right sciatic nerve from its intravertebral origin to the end of the viewable field (mid-femur). Abdominal ultrasound revealed thickened small intestinal loops and enlarged mesenteric lymph nodes. Cytology of the small intestine was suggestive of lymphosarcoma. T-cell lymphosarcoma of the sciatic nerve and small intestines was confirmed with incisional biopsy. Treatment consisted of systemic chemotherapy with vincristine followed by the Wisconsin–Madison feline lymphosarcoma protocol, but despite treatment the patient neurologically worsened and was euthanized after 54 days. Relevance and novel information We present herein one of the first descriptions of neurolymphomatosis in the domestic cat that included post-intravenous contrast MRI. Treatment options based on recommendations for people with neurolymphomatosis include systemic chemotherapy, intrathecal chemotherapy and/or localized radiation chemotherapy. The authors recommend that all cats be screened for concurrent non-neuronal areas of lymphosarcoma before undergoing treatment for neurolymphomatosis, regardless of clinical signs.

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Background: Ultrasonographically detected gallbladder wall edema (GBWE) is a marker for anaphylaxis in dogs. Cardiac disease can cause GBWE with similar signs and should be included as a differential diagnosis to prevent interpretation errors.Hypothesis/Objectives: Document GBWE associated with cardiac disease.Animals: Fourteen client-owned animals.Methods: Prospective case series with abdominal focused assessment with abdominal sonography in trauma, triage and tracking (AFAST), and thoracic focused assessment with abdominal sonography in trauma, triage, and tracking (TFAST) performed at triage. Animals with GBWE and cardiac disease were enrolled. A board-certified radiologist reviewed images to confirm cardiac disease, GBWE, and characterize the caudal vena cava (CVC) and hepatic veins.Results: Thirteen dogs and 1 cat had GBWE associated with cardiac disease. Gallbladder findings included mural thickness ranging from 3 to 5 mm, mild to moderate sludge (n = 3), and mild to moderate luminal distension (n = 6). CVC and hepatic venous distension were found in 5/6. Cardiac diagnoses in dogs included 11 with pericardial effusion (PCE) and 1 each with dilated cardiomyopathy and right-sided myocardial failure. Severity of PCE was rated as mild (n = 1), moderate (n = 6), or severe (n = 4). Seven of 11 had pericardiocentesis performed. Nine of 13 had ascites with 4 having abdominal fluid scores of 1 (n = 2), 2 (n = 2), 3 (n = 1), and 4 (n = 0). Lung ultrasound findings were as follows: dry lung (n = 6), B-lines (n = 4), and nodules (n = 1). The cat had moderate PCE, ascites scored as 1, and severe rightsided ventricular enlargement associated with a ventricular septal defect. Primary presenting complaints included acute weakness (n = 9), acute collapse (n = 5), gastrointestinal signs (n = 3), respiratory distress (n = 2), and need for cardiopulmonary resuscitation (n = 1).

of the anomaly is required for proper gender assignment and appropnate surgical or hormonal correction. As the appearance of the external genitalia often is not distinctive enough to make a spacific diagnosis, this must be accomplished by clinical findings along with a combination of cytogenetic, biochemical, and radiologic studies.