Nodular dermatofibrosis and cystic renal disease in three mixed-breed dogs and a Boxer dog

Three mixed-breed dogs and a Boxer dog with nodular dermatofibrosis are described. The three mixed breed dogs had concurrent renal epithelial cysts ( n  = 2) or renal cystadenomas ( n  = 1); these lesions were visualized antemortem on ultrasonographic examination. One of these dogs was a 7-year-old Labrador Retriever-Gordon Setter mixed breed which survived 5 years after diagnosis, and was euthanized for unrelated causes. The Boxer dog had renal cystic adenomatous hyperplasia and renal cystadenocarcinomas which were not visualized on ultrasonographic examination but were diagnosed at necropsy.     

ADNEXAL CYSTADENOMA IN A BEARDED DRAGON (POGONA VITTICEPS)

An adult female bearded dragon (Pogona vitticeps) presented to the University of Georgia Veterinary Teaching Hospital for an area of swelling affecting the left eye of approximately 3 years’ duration. Upon examination, the left eye could not be evaluated due to an extensive periorbital mass effect. Hematologic and advanced diagnostic testing were recommended, but due to financial concerns the owner declined. Ultimately, the patient was humanely euthanized and was submitted for necropsy. The mass was diagnosed via histopathology as a cystadenoma of the eyelid. Phthisis bulbi of the left eye with granulomatous inflammation was also observed.     

犬乳头状囊腺瘤的诊断

对接诊的1只8岁犬进行了一般检查和B超检查,保守治疗无效,手术切除肿物,用10％福尔马林固定病变组织,制作石蜡切片,观察病理组织学变化,确诊为犬乳头状囊腺瘤。并对此病的病因、发病机理、诊断和治疗方法等进行了探讨。     

ULTRASONOGRAPHIC EVALUATION OF BILIARY CYSTADENOMAS IN CATS

The purpose of this study was to describe the ultrasonographic appearance of biliary cystadenomas in cats and compare the findings to a similar rare form of liver tumor in humans. Biliary cystadenomas are uncommon, benign liver tumors of older cats that may occur as focal or multifocal cystic lesions within the liver. The records of 10 cats which had abdominal ultrasonography and histologic diagnosis of biliary cystadenoma were reviewed. The average age of affected cats was 13.3 years (range 10-16 years). Eight cats were neutered males and two were neutered females. In three cats, the tumors were not seen ultrasonographically due to their small size or from being obscured by near-field reverberation echoes. The remaining seven cats had solitary (4 cats) or multifocal (3 cats) masses corresponding to variable ultrasonographic patterns: multilocular masses containing thin-walled cysts, hyperechoic masses with cystic components, or masses of mixed echogenicity with cystic components. The masses had variable ultrasonographic patterns when multifocal disease was present. Recognizable cysts were evident somewhere within the tumors seen ultrasonographically, although sometimes the cysts appeared very small. The biliary cystadenomas were thought to be clinically silent. Although liver enlargement or a cranial abdominal mass was palpable in 4 cats, no consistent trend of clinical signs, CBC or serum biochemical abnormalities could be directly attributed to biliary cystadenoma. The treatment of choice is surgical resection of the tumor, as continued growth may compress adjacent vital structures within the liver. The differential diagnosis of biliary cystadenomas from other cystic liver lesions such as hepatic cysts, hematomas, abscesses, parasitic cysts, or other liver tumors is discussed.     

35例卵巢囊腺瘤的MRI诊断及鉴别诊断

目的探讨磁共振成像对卵巢囊腺瘤的诊断意义及其表现特征。方法搜集资料完整并经病理证实的卵巢囊腺瘤35例,回顾性分析卵巢囊腺瘤的MRI表现。结果35例共有39个囊灶,其中15例浆液性囊腺瘤共有19个病灶(4例双侧卵巢发病);20例粘液性囊腺瘤均为单侧发病(包括交界性囊腺瘤3例)。5例为单囊病灶;30例为多囊多房性病灶,囊内有分隔,呈多房、破鱼网状、囊套囊状等,囊腺瘤囊壁一般较薄且规则,囊壁可有壁结节;单囊病灶信号均匀,多囊多房性病灶信号多不均匀。结论掌握卵巢囊腺瘤的MRI表现有一定特征性,MRI对卵巢囊腺瘤的定性诊断及鉴别诊断具有重要意义。     

Sporadic neoplasms of farmed chinook salmon,Oncorhynchus tshawytscha (Walbaum), from New Zealand

Eight separate neoplasms with five distinct morphologies are described in the present report. The spontaneous neoplasms were identified in farmed chinook salmon, Oncorhynchus tshawytscha (Walbaum), during processing. The masses were examined histologically and were classified as teratoma, rhabdosarcoma, biliary and renal cystadenomas, renal carcinoma and three leiomyomas. This represents one neoplasm detected for every 125000 fish processed during the sampling period.