Colonic vascular ectasia (angiodysplasia) in a juvenile dog

An eight‐month‐old female English springer spaniel was presented with weight loss and severe haematochezia. Upper and lower endoscopy identified small intestinal inflammatory bowel disease and a vascular malformation within the descending colon. The colonic lesion was excised at coeliotomy and identified histopathologically as a colonic vascular ectasia. All clinical signs resolved following surgery and continued dietary management. To the authors’ knowledge this is only the second published report of CVE in a juvenile dog and the first to survive to long term follow up.     

Rectal hemorrhage associated with vascular ectasia in a young dog.

Rectal bleeding in a 7-month-old 13-kg sexually intact female mixed-breed dog was determined to be associated with vascular ectasia of the small intestine, descending colon, rectum, and anus. Microscopically, the telangiectasia was associated with lymphangiectasia and focal ulceration. Surgical intervention resulted in incomplete resection of the lesion and only temporary amelioration of clinical signs. The dog's age was compatible with a congenital origin for the defect, but an acquired cause could not be excluded.     

Intestinal haemorrhage associated with colonic vascular ectasia (angiodysplasia) in a dog

An eight-year-old, sexually intact, male, 37 kg crossbred dog was referred for investigation of two acute episodes of intestinal bleeding and severe anaemia within a five-month period. There was no evidence of coagulopathy or underlying systemic disease. Technetium-labelled red blood cell scintigraphy suggested the colon as the site of bleeding. Colonoscopy identified a focal area of dilated and tortuous mucosal blood vessels. Histopathology of the resected colon revealed vascular ectasia (angiodysplasia). At nine months post-resection, the dog remained healthy and free of any overt intestinal haemorrhage.     

Diagnosis and surgical treatment of a nasopharyngeal cyst in a dog

A 21-month-old boxer dog was presented with clinical signs caused by nasopharyngeal obstruction. A mineralised mass in the nasopharynx was identified by radiography. Computed tomography allowed accurate anatomical localisation of the cystic lesion and identification of an ossified wall. Surgical removal of the mass by a ventral approach resulted in complete resolution of clinical signs. Histopathological examination strongly suggested that the cyst was derived from remnants of Rathke's pouch.     

Macrohematuria and life-threatening anemia attributable to subepithelial vascular ectasia of the urinary bladder in a dog

Hematuria leading to life-threatening anemia was evaluated in a 9-year-old male dog. At surgery, an abnormal vessel resembling an ulcerated varicose vein was found on the surface of the bladder mucosa. After removal of the lesion, hematuria ceased and had not recurred 22 months later.     

Diagnosis and management of odontogenic myxoma in a dog

A three-year-old Jack Russell terrier dog was presented with a large gingival mass of the right mandible extending from the fourth premolar to the first molar teeth. Radiographic examination of the expansile mass revealed moth-eaten, honeycomb-like lyses of the mandible and extended into the mandibular alveolar canal based on computed tomography. The histopathological diagnosis of the biopsy was odontogenic fibromyxoma. Mandibulectomy with resection of the associated soft tissues was performed. Surgical management was curative with no clinical signs of disease 2-years after treatment. These neoplasms are slow growing, locally destructive tumors of odontogenic origin that have been described in the jaw of only one dog. In this paper, the clinico-radiological and pathologic features, diagnostic modalities as well as the factors that might influence treatment outcome of odontogenic myxomas are discussed. These odontogenic tumors are currently excluded from the WHO classification of odontogenic tumors in domestic animals and inclusion in future classifications systems is proposed.     

Diagnosis and management of Wegener's granulomatosis in a dog

A four-year-old maele/neutered mixed-breed dog was prsented for severe, multifocal, proliferative gingivitis. Histopathologic examination of incisional biopsies supported a diagnosis of Wegener's granulomatosis, an autoimmune vasculitis previously unreported in the veterinary literature. Diagnostic investigations for infectious, neoplastic, or other inflammatory conditions all provided negative results. Management with a combination of immunosuppressive agents resulted in complete resolution and remission of the presenting lesions and associated clinical signs.     

Usefulness of magnifying endoscopy with narrow-band imaging for diagnosing primary vascular ectasia in a dog

A 2-year-old spayed female crossbred dog was presented for profuse, acute, and chronic vaginal hemorrhage. Coagulation disorders were excluded. Conventional diagnostic imaging failed to precisely identify the source of bleeding. After whole-blood transfusion, magnifying endoscopy with narrow-band imaging allowed the visualization of unique vascular patterns within the vaginal wall. Presumptive diagnosis of vaginal vascular ectasia was made and confirmed by histopathological examination. Surgical management with subtotal vaginectomy cured the dog.Key clinical message:Vascular ectasia is rarely reported in veterinary medicine and is challenging to diagnose. This is apparently the first report of the usefulness of magnifying endoscopy with narrow-band imaging as a diagnostic tool for vascular ectasia in a dog.     

Medical and surgical management of severe barium aspiration in a dog

Objective– To describe the medical and surgical management of a unique case of barium sulfate aspiration pneumonia in a dog. Case Summary– A 5‐year‐old spayed female black Labrador Retriever weighing 33 kg was presented for evaluation of barium aspiration pneumonia. Approximately 200 mL of barium had been instilled into the caudal lung lobes via an improperly placed orogastric tube. Right caudal, right middle, and accessory lung lobectomies were performed, and the dog was managed intensively for 19 days in the hospital. New or Unique Information Provided– This is the first report of a complete diagnostic work‐up including bronchoscopy, bronchoalveolar lavage, culture, thoracotomy, and pulmonary histopathology for severe barium sulfate aspiration in a dog with an excellent outcome.     

犬子宫蓄脓的诊断及手术治疗

子宫蓄脓是母犬常见的疾病,临床上可采用保守疗法和手术疗法治疗,但据临床统计保守疗法治愈率仅有15%,并且复发率高达到75%～90%,而手术疗法治愈率高达90%,且无反复.2008年3月,我院接诊1只4岁患病母犬,现将诊治情况报告如下.     

Diagnosis and management of the overweight dog

Canine obesity remains one of the most commonly encountered problems in small animal practice; yet the average owner rarely presents the dog because it has been recognized as being overweight. More frequently, the dog is presented because it is suffering from one of the numerous health problems that being overweight can cause. The present paper discusses the causes, development and clinical signs of obesity, the differential diagnosis of the condition and finally the management of cases.     

Diagnosis and surgical management of a fractured atlas in a cat

A 6-month-old male-castrated domestic shorthair cat was presented shortly after being bitten on the neck by a large breed dog. On presentation the cat was non-ambulatory tetraparetic with preserved deep pain perception. Plain radiographs of the neck did not show any abnormalities. Computed tomography was performed and showed a right-sided depressed fracture of the dorsal lamina of the atlas. A partial dorsal laminectomy was performed to alleviate the spinal cord compression. The cat made a full recovery within 12 weeks of surgery.     

Ectopic ureterocele in a male dog: a case report and review of surgical management

A 16-week-old, male border terrier was presented for urinary incontinence. Intravenous urography demonstrated a right-sided, extravesical ectopic ureterocele. Neoureterocystostomy and ureterocele omentalization were performed. Urinary incontinence persisted after surgery. Retrograde urethrography revealed communication between the ureterocele and urethra. Urinary incontinence resolved following partial ureterocelectomy and reconstruction of the proximal urethra.     

Diagnosis and surgical management of ectopic ureters

Ureteral ectopia is a congenital abnormality of the terminal segment of one or both ureters in which the ureteral orifice is located distal to the trigone of the bladder. Continuous or intermittent urinary incontinence is the most frequently reported clinical symptom associated with ureteral ectopia. A variety of anatomic morphologies of ectopic ureters have been reported. Historically, surgical therapy focused on reestablishing drainage of the ureters into the bladder lumen. However, continued urinary incontinence after surgery is the most frequently reported complication. Specific classification and successful management of the various types of ectopic ureters remain diagnostic and therapeutic challenges to the veterinary clinician. Cystoscopic evaluation of the lower urinary tract and urodynamic evaluation of bladder and urethral function has improved the presurgical assessment of the patient. Surgical procedures, which are aimed at repositioning the ureteral orifice(s) within the bladder lumen and treating primary sphincter incompetence, are necessary to successfully manage small animal patients with ectopic ureters.     

Compressive myelopathy associated with ectasia of the vertebral and spinal arteries in a dog

A 4-year-old dog was presented for acute, progressive tetraparesis and cervical hyperesthesia. Symmetrical tubular structures coursing along the lateroventral aspects of the spinal cord at the fourth and fifth cervical vertebrae were identified in magnetic resonance images. At necropsy, vertebral arteries and their spinal branches were severely ectatic bilaterally, and the cervical spinal cord was compressed. Histologically, the ectatic branches of the vertebral and ventral spinal arteries were surrounded by fibrosis with scant mononuclear cell infiltrates and hemorrhage. Spinal branches of the vertebral arteries had focally severe reduction in the tunica media. A thrombus was in an arterial branch. Smaller vessels in adjacent tissue had fibrinoid degeneration. Axonal degeneration was detected in the affected spinal cord and nerve roots. The segmental degenerative radiculomyelopathy in this dog was attributed to anomalous ectasia of the vertebral and ventral spinal arteries.     

The surgical management of bone-involved oral tumours in the dog

A total of 28 dogs bearing bone-involved tumours of the oral cavity underwent radical excision procedures including premaxillectomy, mandibular symphysectomy and removal of the horizontal body or vertical ramus of the mandible. Subsequent return to normal feeding was rapid and long-term prehensile and masticatory function was considered to be good with prosthetic reconstruction necessary in only one case. Amongst the 23 malignant tumours in this series the actuarial survival rate at twelve months was markedly improved in the case of the squamous cell carcinoma and osteosarcoma over that for conventional treatment techniques. No significant improvement was seen in the cases of fibrosarcoma. All five dogs undergoing surgery for benign tumours are surviving tumour free. Radical surgical excision is a practical approach to the management of otherwise complex mandibular and premaxillary tumours providing good tumour-free function and improvement in prognosis for certain histological types.