Maduromycotic mycetoma in a horse

A case of maduromycotic mycetoma (eumycetoma) in seven years old draught horse is described. The disease was localized in anal region and healed after surgical treatment. Attention is drawn to the necessity of distinguishing three types of mycosis in horses, characterized by the origin of tumor lesions - mycetomas, hyphomycosis and entomophthoromycosis - and information was gathered on their etiology and geographical occurrence. On the basis of the morphology of fungal elements traced in inflammated changed tissues and with regard to the existing findings on the origin of eumycetoma in animals, it was concluded that the disease described was probably caused by fungus Allescheria boydii Shear. Exact definition of the causative agent was impossible without mycological cultivation.     

乳牛放线菌型乳腺炎

1999年 9月 ,上海郊县某奶牛场 ,发生多例典型临床乳腺炎 ,使用常规抗生素基本无效 ,部分抗生素有激发乳腺炎加重的迹象 ,后经多方检测结论为放线菌属感染的乳腺炎。1　临床症状乳区肿硬 ,触诊乳区内有大如葡萄小如黄豆的结节状物 ,乳区早期表现为发热皮温升高 ,后期皮温正常 ,乳汁初为白色脓状或块状物 ,后为黄色水样 ,泌乳量急剧减少 ,发病乳区与未发病乳区区别明显 ;伴有全身感染症状 ,厌食 ,体温升高至 40 .2 7～41 .32℃ ;病畜精神沉郁 ,后期腹泻 ,被毛粗乱 ,皮肤弹性下降 ,病畜严重消瘦 ,可导致急性死亡 (一般在发病后 1周导致死亡 ,…     

Eumycotic mycetoma caused by Pseudallescheria boydii in a dog

Abdominal eumycotic mycetoma caused by Pseudallescheria boydii was diagnosed in a 3-year-old male Siberian Husky. The dog was examined because of weight loss and signs of depression. Initially, pyrexia was the only clinical finding. Antibiotic and corticosteroid treatment was ineffective. Two weeks later, the dog's appetite had decreased, it had vomited a few times, and the caudal portion of the abdomen was sensitive to palpation. Hematologic and serum biochemical abnormalities consisted of anemia, leukocytosis, hypoglycemia, hypoalbuminemia, hyperglobulinemia, and high alkaline phosphatase activity. One week later, the dog's condition continued to worsen, and testicular swelling was observed. The dog was castrated. Microscopic examination of specimens obtained at surgery revealed pyogranulomatous periorchitis with mycetoma granules. Ketoconazole treatment was initiated and continued until the dog died one month later. Necropsy revealed multifocal duodenal ulcers, with transmural pyogranulomatous enteritis, pancreatitis, and peritonitis. This case is unique because the etiologic agent apparently entered via the intestinal tract rather than by contamination of an external wound.     

Eumycotic mycetoma caused by Pseudallescheria boydii in the abdominal cavity of a dog

An abdominal eumycotic mycetoma with multiorgan dissemination was diagnosed in a 2-year-old dog. Clinical signs included fever, vomiting, diarrhea, weight loss, and a palpable abdominal mass. The dog developed disseminated intravascular coagulation and died. Pseudallescheria boydii was isolated from the abdominal mass, liver, and peritoneal fluid. Relevant history included an ovariohysterectomy when the dog was 6 months old, which was complicated by dehiscence of the incision site and evisceration. It appears that P boydii has a propensity for establishing itself in the abdominal cavity of the dog, subsequent to surgical dehiscence.     

Canine mycetoma: a case report and review of the literature

This paper describes a mycetoma of the fourth tarsal bone of a 5-year-old spayed Corgi-cross bitch caused by the eumycete Curvularia geniculata. The condition was treated successfully by surgical excision, followed by chemotherapy using iodine, trimethoprim-sulphadiazine, amphotericin B. dimethyl sulphoxide. thiabendazole and nystatin. An attempt was made to establish the in vitro minimum inhibitory concentration of various antifungal drugs on the causative organism. No clinical or radiological evidence of recurrence was found 3 years after initiation of treatment, despite the original poor prognosis.     

Megaesophagus in a cat

Megaesophagus in an eight month old Siamese cat is described. Initially, a cause for the vomiting was not discovered and the cat was treated for pyloric spasm. Several months later the same cat, in poor physical condition, was presented with a palpable bulge along its ventral neck. At this time a very dilated and flaccid esophagus was found. An exploratory thoracotomy was done but a cause for the megaesophagus was not discovered.     

Cholelithiasis in a cat

A 4-year-old cat was examined because of anorexia and lethargy. The cat became icteric within 3 days of admission. Values for aspartate transaminase, alanine transaminase, total bilirubin, alkaline phosphatase, and cholesterol were higher than normal. Radiography revealed hepatomegaly, with loss of detail in the cranioventral portion of the abdomen. Further diagnostic procedures were not permitted, and the cat was euthanatized. At necropsy, cholecystitis, cholangitis, and numerous choleliths were found. Cholelithiasis is a rare cause of obstructive jaundice in the cat.     

Adamantinoma in a cat

SUMMARY An 18-months-old neutered male cat was presented for veterinary examination because of a rapidly enlarging mass in the region of the right upper canine tooth. Radiological examination showed displacement of this tooth and destruction of the right maxilla. Post mortem and histopathologic examination confirmed that the mass was a tumour, an adamantinoma.