Ozren Smolec

Intratesticular benign peripheral nerve sheath tumour in a ferret (Mustela putorius furo)

A domestic ferret was submitted for sterilisation because of right testis enlargement. Oestradiol and cortisol concentrations were within normal physiological ranges, but testosterone was below and progesterone above normal. Microscopically, the right testis, with the exception of a small part of the epididymis, was replaced with neoplastic tissue. The tumour was composed of streams and bundles of closely packed spindle to ovoid cells forming whorls around collagen and capillaries, and separated by a collagenous matrix. In some areas, cells were loosely arranged and separated by a pale myxomatous matrix. The left testis showed atrophy. The majority of neoplastic cells expressed vimentin and S-100 protein, while expression of collagen IV was moderate and there was no expression of glial fibrillary acid protein. On the basis of macroscopical and histopathological findings, and supported by immunohistochemical reactivity, the diagnosis of benign peripheral nerve sheath tumour was made. This is the first report of benign peripheral nerve sheath tumour in ferret testis.

Review of 166 Gunshot Injury Cases in Dogs

The study is aimed to establish predilection signalment and history data, and to investigate clinical findings and risk factors associated with a poor outcome in dogs with projectile injuries. A retrospective study was undertaken of 166 canine cases in which a projectile was found on radiograph in a university׳s diagnostic imaging center more than a 4-year period. The study included dogs with both apparent (obvious recent traumatic event) and incidental (traumatic event unknown to the owner) projectile injury. Radiographs were reviewed and data regarding projectile position according to body region, number and type of projectile(s), bone fracture(s), and wound(s) related to projectile were recorded. The dogs were divided into groups according to owner address, hunting accident vs. shooting unrelated to hunting, and projectile type found on radiographs. Overall, 160 dogs met the inclusion criteria, making 0.76% the incidence of gunshot injuries. Further, 91 dogs were received with incidental projectile injury, and 75 dogs had apparent projectile injury. Male dogs were overrepresented (74.1%). Hunting accidents were the cause of projectile injury in 12.7% of cases. Fractures were observed in 20.5% of dogs. Most of the dogs (62%) were from an urban area, and the most common projectile type was airgun projectile (62%). The risk of fatal outcome was 14.4 times higher in dogs with thoracic injuries. Projectile injuries are still a real cause of trauma, especially in urban areas and in male dogs. Most gunshot injuries do not cause fatalities, although the thoracic projectile injury was associated with a greater fatality risk.

Bull castration by method of total scrotal ablation

In this work, a 2 years and 10 months old bull, with 14 days history of wound on the right side of scrotum was presented. A painful swelling coated by grayish pseudo membranes of necrotic epithelium and fibrin was observed in right lateroventral portion of the scrotum. The presented data enabled us to make decision of performing the total scrotal ablation. The intention was to prevent the influence of probable resorbed necrotic tissue on the vital status of the patient.

Osteosynthesis of the radius and ulna in a brown hare lepus europeus

Six months old brown hare was presented at the Surgery Clinic for evaluation of a right forelimb third grade lameness. Full physical examination, blood samples for complete blood count, and serum biochemistry were performed. Radiographic examination from anteroposterior and lateral views confirmed a old, closed, complete, non-comminuted, transverse fracture in the middle part of right radius and ulna. Fracture repair in the brown hare is a similar to those in cats and dogs. Stabilization of fractures with bone plates and screws are the most popular methods of fracture fixation. Osteosynthesis was performed by 2.0, 8-hole stainless steel Synthes dynamic compression plate, DCP (Synthes Holding AG, 4500 Solothurn, Switzerland) placed on radius in neutral position to achieve anatomical repositioning of fragments and to restore normal biological function of the limb. Surgical procedure was performed within 45 minutes in order to reduce residence in a hospital environment, which hares generally find stressful. The fracture was assessed as clinically stable in the 5th day postoperatively and the animal was weightbearing on its forelimb. Osteosynthesis of hare radius using DCP plate 2.0 is a good method of fixation and healing fractures. After performing full clinical examination and bloodwork, controled and modulated anaesthesia and analgesia, it is possible to perform osteosynthesis with excellent outcome and also a good way to preserve fragile wildlife.

The effect of preanesthetic administration of lactated ringer solution on blood pressure in isoflurane-anesthetized horses.

Hypotension induced by volatile agents is particularly notorious in horses and it is probably one of the major causes of the high anaesthetic risk in this species. In the present study we investigated the influence of 10 mL/kg lactated Ringer solution on the values of arterial blood pressure during the elective surgical procedure, administered right before the induction of anaesthesia. The goal was to establish if it was possible to lower the risk of hypotension development with this type of therapy. Nine horses divided in two groups were used in this study. All the horses were submitted to the same anesthetic regimen. The second group of horses received 10 mL/kg i.v. lactated Ringer solution in the 15 minutes time before the induction of anesthesia. The effect of lactated Ringer solution was noted at the beginning of anesthesia. Statistically significant differences among groups were noticed during the first measurement. The results indicate that the suggested method may provide a very simple way of supporting the cardiovascular system at least at the beginning of the surgical procedure.