Imaging Features of Eosinophilic Bronchopneumopathy in Three Dogs

지서연,이강재,김준영,윤정희,최민철 한국임상수의학회 2012 한국임상수의학회지 Vol.29 No.2

Three dogs were presented with a history of dyspnea and cough. Physical examination, blood analysis,bronchoalveolar lavage and radiography of three dogs were evaluated. And additionally, computed tomography and lung biopsy were performed on one dog. They showed normal laboratory examination results. The radiographic findings noted alveolar and bronchointerstitial infiltration with bronchiectasis. For one dog, nodules scattered throughout both lung fields on survey radiographs were confused with pulmonary neoplasia, so CT scan was used to rule out neoplasia. Bronchoalveolar lavage revealed abnormally high levels of eosinophils in all dogs. On histopatholgic exam, eosinophilic bronchiolitis and eosinophilic and histiocytic alveolitis were confirmed. Consequently, all dogs were diagnosed as eosinophilic bronchopneumopathy. Symptoms regressed dramtically within a few days after treatment with oral corticosteroids. Radiographs and CT scan are useful for diagnosis and prognosis of eosinophilic bronchopneumopathy.

Magnetic resonance imaging features of suspected acute spinal cord infarction in two cats

정선영,김보은,지서연,윤정희,최민철 한국임상수의학회 2013 한국임상수의학회지 Vol.30 No.4

Spinal cord infarction is becoming recognized as an important cause of acute myelopathy in cats. Although the definitive diagnosis is confirmed through postmortem histopathologic examination, MR imaging features provide valuable informations for the diagnosis of spinal cord infarction. The aim of this report is to describe MR findings of acute spinal cord infarction in two cats and to evaluate usefulness of low field MRI (0.3Tesla) as a potential diagnostic tool of acute spinal cord infarction. A cat (unknown age, neutered male mixed breed cat) was referred one day after the acute onset of non-ambulatory spastic tetraparesis and the other cat (a 9-year-old, neutered female domestic short hair cat) was presented due to the acute onset of non-ambulatory paraparesis and one day later paraplegia. The lesions of the MR images were shown on the spinal cord parenchyma over C2 to C6 in case 1 and L2 to L5 in case 2. The MR images in these two cases were characterized by focal intramedullary lesions, mainly involving grey matter which were hyperintense T2 weighted and FLAIR images and hyperintense on DWI and hypointense on ADC map. The MR findings in both cases were highly suggestive of acute spinal cord infarctions, based upon previous reported small animal cases and human cases. In conclusion, based on MR features, together with the history and clinical examination findings,MRI modality can be used as an antemortem tool for the diagnosis of acute spinal cord infarction in cats.

A Case of Feline Infectious Peritonitis with Intestinal Manifestation in a Cat

오현정,손정민,정선영,김보은,지서연,정주현,김대용,윤화영,윤정희,최민철 한국임상수의학회 2014 한국임상수의학회지 Vol.31 No.5

A 2-year-old, intact male, Persian exotic cat, weighing 2 kg with a history of a palpated abdominal masswas admitted to Veterinary Medical Teaching Hospital, Seoul National University. On routine complete blood count(CBC) and serum biochemical analyses, there were anemia, 0.45 of albumin to globulin ratio. A feline infectiousperitonitis (FIP) virus antibody test kit was negative. Radiography, ultrasonography and computed tomography (CT)were performed. A markedly enlarged samll intestinal mass of superior mesenteric vein was found. On cytologicexamination of this mass, it was diagnosed as alimentary lymphoma or pyogranulomatous inflammation. chemotherapeurical treatment form intestinal lymphoma was provided for several weeks, but the mass size was increasedand clinical signs were not improved. The cat died six days after discontinuing chemotherapy. On postmortemexamination, the definitive diagnosis was FIP. this case describes a cat with FIP in which an abdominal tumor hadbeen suspected clinically.

Gastric Dilatation and Volvulus in Shih-tzu

문준호,김현아,류민옥,장민,지서연,이인형,윤정희,최민철,윤화영,이병천,장구 한국임상수의학회 2015 한국임상수의학회지 Vol.32 No.3

Gastric dilatation and volvulus (GDV) is an acute and life-threatening disease most commonly affecting large- and giant-breed dogs. However a 17-year-old Shih-tzu (4 kg, spayed female) was hospitalized for acute GDV. Repeated unproductive retching, lethargy, and excessively enlarged abdomen were observed. Physical examination indicated that the patient had suffered from hypothermia (36.5oC), tachycardia (240 bpm), slowed capillary refill time (> 2 sec.), and pale mucous membrane. Grade III murmur with normal lung sound was auscultated. Abdominal palpation revealed that tympanic regions existed in both the left and right sides. Systolic blood pressure decreased gradually from 220 to 40 mmHg within 4 hours. In blood analysis, slight azotemia was observed by blood urea nitrogen (BUN; 29.1 mg/dl) and creatinine (1.6 mg/dl). Blood lactate concentration (8.13 mmol/l) was severely elevated. Additionally, dilatation and volvulus of the stomach was observed by radiograph. Supportive oxygen, heat, fluid, and drugs were administered with gastric decompressions (e.g., gastrocentesis and nasogastric tube). However the patient entered into comatose status with uncontrollable systolic blood pressure, despite the administration of dobutamine intravenously. The case was closed by euthanasia, considering welfare and age. We finally diagnosed the patient as a GDV, thus this is the first GDV case report in small-breed dog such as Shih-tzu.

Lumbar Angiomatous Meningioma in a Dog

손정민,김보은,정선영,지서연,윤대영,권오경,김대용,최민철,윤정희 한국임상수의학회 2014 한국임상수의학회지 Vol.31 No.2

An 11-year-old castrated Schnauzer presented with paraplegia for the last two weeks, initially developedpelvic limb ataxia 6 months ago and left pelvic limb paresis 3 months ago. On neurological examination, paraplegiaand postural reaction deficits were noted in the pelvic limbs with no deep pain sensation, and the dog showedexaggerated spinal reflexes and involuntary urination. Magnetic resonance (MR) images of thoracolumbar spinal cordwere obtained with a 0.3 Tesla magnet. A mass with a broad base to the dorsal and left dural margins was identifiedat the level of L2, causing marked spinal cord compression. The mass showed isointensity to the spinal cord on T1-weighted (T1W) precontrast images, hyperintensity on T2-weighted images, marked homogeneous contrast enhancementwith well-defined margins and the “dural tail” sign on T1W postcontrast images. An intradural-extramedullay tumorwas considered, most likely, meningioma was highly suggestive. Left-sided hemilaminectomy and dorsal laminectomywere performed. An intradural mass partially adherent to dura mater was compressing the spinal cord, and the masswas completely removed with the attached dura mater. A histopathologic diagnosis of angiomatous subtype meningiomawas made.

Primary Ureteral Transitional Cell Carcinoma in a Dog

김성수,이저순,윤수경,김수연,오현정,손정민,정선영,김보은,지서연,김대용,김완희,윤정희,최민철 한국임상수의학회 2015 한국임상수의학회지 Vol.32 No.5

A 14-year-old, castrated male mixed-breed dog weighing 9 kg was presented for hematuria and dysuria. Abdominal ultrasound showed unilateral hydronephrosis and hydroureter with focal thickening of the ureteral wall. Surgical exploration revealed an intraluminal mass arising from the proximal left ureter. Mass resection was performed. Histopathology of the ureteral mass was consistent with a papillary transitional cell carcinoma. The patient recovered well post-operatively, but was diagnosed with another tumor three months later, this time in the right kidney. Fineneedle aspiration cytology of the renal mass revealed an epithelial cell tumor with mesenchymal features.

Primary Ureteral Transitional Cell Carcinoma in a Dog

김성수,이저순,윤수경,김수연,오현정,손정민,정선영,김보은,지서연,김대용,김완희,윤정희,최민철,Kim, Seong-soo,Lee, Jeo-soon,Yun, Soo-kyung,Kim, Su-yeon,Oh, Hyun-jung,Sohn, Jung-min,Jung, Sun-young,Kim, Bo-eun,Ji, Seo-yeoun,Kim, Dae-yong,Kim, W The Korean Society of Veterinary Clinics 2015 한국임상수의학회지 Vol.7 No.2

14살령의 중성화 수컷 개가 혈뇨와 배뇨통으로 내원하였다. 복부초음파 검사에서 편측성 수신증과 요관 벽이 국소적으로 두꺼워진 수뇨관증이 진단되었다. 수술적 탐색으로 좌측 근위 요관에서 요관 유래의 관내 종괴가 확인되었으며, 종괴 절제술이 실시되었다. 요관 종괴는 조직학적 검사를 통해 유두상 이행세포암종으로 진단되었다. 환자는 안정적으로 회복되었으나, 수술 3개월 후 또 다른 종괴가 우측 신장에서 발견되었다. 신장 종괴에 대한 세포학적 검사 결과 간엽세포종양으로 진단되었다. A 14-year-old, castrated male mixed-breed dog weighing 9 kg was presented for hematuria and dysuria. Abdominal ultrasound showed unilateral hydronephrosis and hydroureter with focal thickening of the ureteral wall. Surgical exploration revealed an intraluminal mass arising from the proximal left ureter. Mass resection was performed. Histopathology of the ureteral mass was consistent with a papillary transitional cell carcinoma. The patient recovered well post-operatively, but was diagnosed with another tumor three months later, this time in the right kidney. Fine-needle aspiration cytology of the renal mass revealed an epithelial cell tumor with mesenchymal features.