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1.
Juliette G. Besso DEDV Amy S. Tidwell DVM John M. Gliatto VMD 《Veterinary radiology & ultrasound》2000,41(4):345-352
Clinical signs and follow-up information were recorded. Histopathologic diagnoses were obtained for 25 adrenal glands in 21 ferrets. Adrenal lesions included ten adenocarcinomas, nine adenomas, one hyperplasia and one cortical cyst. Four adrenal glands (all right-sided) were diagnosed as unspecified adrenal tumors but lacked a definite histopathologic diagnosis (adenoma vs. adenocarcinoma) due to incomplete surgical resection and consequent small sample sizes. Bilateral adrenal lesions were identified in 4 ferrets (19%). Adrenal shape, size, echogenicity, laterality, and the presence of vascular invasion were evaluated with ultrasound. Size and shape were variable and not specific to lesion type. Both benign and malignant adrenal tumors (adenomas, adenocarcinomas) appeared most often as masses with increased thickness and a normal length (11/23), less frequently as larger masses with increased thickness and length (4/23) or as nodules focally deforming the normal adrenal shape (6/23). The only cortical cyst appeared as a nodule. Three adrenal glands had a normal size and shape and were diagnosed as adenomas (2) or hyperplasia (1). Therefore treatment may be warranted based solely on clinical signs if adrenal glands are ultrasonographically normal. Vascular invasion was not identified ultrasonographically. However, focal absence of periglandular fat resulting in contact of 8 adrenal glands with either caudal vena cava (6), aorta (1) or liver (1) identified ultrasonographically, correlated with incomplete surgical resectability (6/8) and histopathologic diagnoses of carcinoma (4/8) or unspecified tumors (4/8). Therefore, a focal absence of periglandular fat between the adrenal gland and the large vessels or liver, deviation or compression of the large vessels by the adrenal lesion may indicate malignancy. Adrenal tumors (benign and malignant) were often associated with a prominent uterus, uterine stump or prostate with or without prostatic cysts. 相似文献
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Juliette G. Besso DEDV Dominique G. Penninck DVM John M. Gliatto VMD 《Veterinary radiology & ultrasound》1997,38(6):448-455
A review was performed of ultrasonographic findings in 26 dogs with confirmed adrenal lesions. Adrenal shape, size, echogenicity, laterality, and the presence of vascular invasion were evaluated. Histopathologic diagnoses were obtained in all dogs. Adrenal lesions were confirmed as pheochromocytomas (9), adenocarcinomas (6), a poorly differentiated blastoma (l), bilateral adrenal metastases of a carcinoma (l), adenomas-one of which was bilateral-(4) and hyperplasia (6). Size and shape were extremely variable and not specific to lesion type. There was a tendency for pheochromocytomas (7), adenocarcinomas (5) and poorly differentiated blastoma (1) to be rounded masses. Adenomas (4), hyperplasia (7) and adrenal metastases (2) presented predominantly as nodules. No specificity in echogenicity was noted. Mineralization and bilaterality were present in both benign and malignant lesions. Vascular extension or the presence of a thrombus were suggestive but not specific signs of malignancy. Based on our prelimiary study, ultrasonography is an effective method for localizing adrenal lesions and is helpful in assessing their extension. However, no definitive differentiation between benign and malignant lesions was possible using ultrasonographic criteria alone. 相似文献
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Amy B. Gifford DVM Peter J. Lotsikas DVM DACVS-SA DACVSMR William D. Liska DVM DACVS Sarah K. Israel DVM DACVS-SA Mark C. Rochat DVM MS DACVS W. Brian Saunders DVM PhD DACVS-SA Laurent P. Guiot DVM DACVS-SA DECVS Denis J. Marcellin-Little DEDV DACVS DACVSMR Kevin P. Benjamino DVM DACVS-SA Jonathan Dyce MA VetMB MRCVS DSAO DACVS 《Veterinary surgery : VS》2020,49(8):1487-1496
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Matteo Rossanese DVM SPSA CertAVP MSc MRCVS Brandan Wustefeld-Janssens BSc BVSc CertAVP DECVS MRCVS Cleo Price BVSc MRCVS Ben Mielke BVSc MRCVS Samantha Woods BSc MA VetMB CertSAS DECVS FHEA MRCVS Nicola Kulendra BVetMed CertVDI DECVS MRCVS Guillaume Chanoit DEDV MSc PhD DACVS DECVS FHEA 《Veterinary surgery : VS》2020,49(4):659-667
6.
Gian Luca Rovesti DrMedVet Diplomate ECVS Marco Bascucci DrMedVet Karin Schmidt DrMedVet Denis J. Marcellin-Little DEDV Diplomate ACVS Diplomate ECVS 《Veterinary surgery : VS》2002,31(1):70-77
OBJECTIVE: To evaluate the treatment of a spontaneously occurring osteosarcoma in a dog by means of tumor resection and bone regeneration of a 12-cm defect using double bone transport. STUDY DESIGN: Case report. ANIMALS OR SAMPLE POPULATION: An 11 year-old client-owned German shepherd. METHODS: After tumor resection, a preassambled Ilizarov frame was secured to the proximal tibia and to the tarso-metatarsal region. Two osteotomies were performed in the proximal metaphysis. The two bone segments were transfixed with 1.5-mm-diameter wires, each secured to a ring, and bone transport was performed until the distal segment reached the talar surface. Cisplatin was administered 14, 35, and 59 days after surgery. RESULTS: Bone regenerate was first visible radiographically 4 weeks after surgery. The frame was removed 162 days after surgery. The hock was protected with a plaster cast because the tarsal arthrodesis was not complete. The dog underwent tibiotarsal arthrodesis 201 days after osteosarcoma resection. The dog died of metastatic disease 239 days after the initial surgery. CONCLUSIONS: Even though this dog died of systemic metastases, local recurrence did not develop. Cisplatin chemotherapy did not appear to negatively affect bone regeneration. CLINICAL RELEVANCE: To our knowledge, the double transport technique has not been previously described in the veterinary literature. In this dog, this technique decreased the duration of treatment compared with a conventional single-segment transport technique. 相似文献
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GIAN LUCA ROVESTI DVM Diplomate ECVS MARK FLÜCKIGER Dr med vet Diplomate ECVDI REA MARGINI DVM DENIS J. MARCELLIN-LITTLE DEDV Diplomate ACVS Diplomate ECVS 《Veterinary surgery : VS》1998,27(4):354-357
Objective —To describe incomplete ossification of the humeral condyle and fragmentation of the medial coronoid process in a Rottweiler.
Study Design —Clinical report.
Animal Population —A 4-year-old sexually intact male Rottweiler.
Methods —Physical examination, radiography, and computed tomography of both elbow joints were performed initially. Drill holes were made across the humeral condyle to promote ossification. Radiography and computed tomography were repeated 14 weeks later. Radiography was repeated 15 months later. A mild, intermittent lameness remained.
Results —Preoperatively a radiolucent line was present across the right humeral condyle. This radiolucent line remained unchanged 14 weeks after drill holes were made across the condyle.
Conclusions —Incomplete ossification of the humeral condyle is present in Rottweilers.
Clinical Relevance —Incomplete ossification of the humeral condyle is present in Rottweilers and may coexist with fragmentation of the medial coronoid process in that breed. The radiographic diagnosis may be difficult because precise positioning is required to see the area of incomplete ossification. Computed tomography may be required to confirm the presence of incomplete ossification of the humeral condyle. Drilling holes across the humeral condyle does not appear to lead to union of the area of incomplete ossification. 相似文献
Study Design —Clinical report.
Animal Population —A 4-year-old sexually intact male Rottweiler.
Methods —Physical examination, radiography, and computed tomography of both elbow joints were performed initially. Drill holes were made across the humeral condyle to promote ossification. Radiography and computed tomography were repeated 14 weeks later. Radiography was repeated 15 months later. A mild, intermittent lameness remained.
Results —Preoperatively a radiolucent line was present across the right humeral condyle. This radiolucent line remained unchanged 14 weeks after drill holes were made across the condyle.
Conclusions —Incomplete ossification of the humeral condyle is present in Rottweilers.
Clinical Relevance —Incomplete ossification of the humeral condyle is present in Rottweilers and may coexist with fragmentation of the medial coronoid process in that breed. The radiographic diagnosis may be difficult because precise positioning is required to see the area of incomplete ossification. Computed tomography may be required to confirm the presence of incomplete ossification of the humeral condyle. Drilling holes across the humeral condyle does not appear to lead to union of the area of incomplete ossification. 相似文献
8.
Stan Veytsman DVM Pierre Amsellem DVM MS DACVS-SA Brian D. Husbands DVM DACVIM Aaron K. Rendahl BA BS PhD Philip J. Bergman DVM MS PhD DACVIM Guillaume Chanoit DEDV MSc PhD DECVS/DACVS-SA Colleen Hickey DVM Kristy R. Cash DVM Karl C. Maritato DVM DACVS-SA Francesco Collivignarelli MS PhD Jolle Kirpensteijn DVM PhD DECVS/DACVS-SA 《Veterinary surgery : VS》2023,52(1):42-50
9.
Significance of a common extended mucosal interface observed in transverse small intestine sonograms
Delphine N. Rault DVM Juliette G. Besso DEDV Lilia Boulouha DVM Dominique Begon DVM Yannick Ruel DVM 《Veterinary radiology & ultrasound》2004,45(2):177-179
An echogenic stripe can be seen through the mucosal layer on either side of the ultrasonographic image of a bowel loop in cross-section. The mucosa is a continuous layer surrounding the intestinal lumen; thus it should appear as a continuous hypoechoic band with no bright stripe in it. The purpose of this study was to investigate the origin of this stripe and to determine whether it is an artifact. Intestinal cross-sectional images were obtained using different transducer types and frequencies. In vivo and in vitro, different angles of insonification were used and, in vitro, bowel loops were also fluid filled during an ultrasonographic examination, to assess the potential influence of intestinal shape and position on this stripe. Some of these loops were evaluated histologically to determine if the echogenic stripe had a histologic basis. The echogenic stripe was present only when the loop was flattened. It remained on each side of the maximal cross-sectional width and disappeared when this width was parallel to the ultrasound beam, or when the bowel loop had a completely round shape and was dilated. There was no influence of transducer type, shape, or frequency on the appearance of the line. Histologically, uneven and larger distance between the mucosal villi could be seen on either side of the bowel loop corresponding to the location of the echogenic stripe seen on the ultrasonographic images. In conclusion, the occasional echogenic stripe represents an interface within the mucosa due to altered position of villi on either side of the maximal intestinal cross-sectional width in collapsed bowel segment. 相似文献
10.
JG Besso DEDV RH Wrigley BVSc MS DVR JM Gliatto VMD CRL Webster DVM 《Veterinary radiology & ultrasound》2000,41(3):261-271
Fourteen dogs with enlarged gallbladders and immobile stellate or finely striated bile patterns on ultrasound are described. Smaller breeds and older dogs were overrepresented, with 4/14 Cocker Spaniels. Most dogs presented for nonspecific clinical signs such as vomiting, anorexia and lethargy. Abdominal pain, icterus and hyperthermia were the most common findings on physical examination. All dogs except one had serum elevation of total bilirubin and/or alkaline phosphatase, alanine aminotransferase and gamma glutamyl transferase. All dogs were diagnosed with a gallbladder mucocele upon histologic and/or macroscopic evaluation. Ultrasonographically, mucoceles are characterized by the appearance of the stellate or finely striated bile patterns and differ from biliary sludge by the absence of gravity dependent bile movement. On ultrasound, gallbladder wall thickness and wall appearance were variable and nonspecific. The cystic or common bile duct were normal sized in 5 dogs although all 5 had evidence of biliary obstruction at surgery or necropsy. Loss of gallbladder wall integrity and/or gallbladder rupture were present in 50% of the dogs, all located in the fundus. Gallbladder wall discontinuity on ultrasound indicated rupture whereas neither bile patterns predicted the likelihood of gallbladder rupture. Pericholecystic hyperechoic fat or fluid were suggestive of but not diagnostic for a gallbladder rupture. Cholecystectomy appears to be an appropriate treatment for mucoceles, if not to treat a gallbladder rupture, at least in most dogs to prevent it since gallbladder wall necrosis was identified by histology in 9 of 10 dogs. Mucosal hyperplasia was present in all gallbladders examined histologically. Positive aerobic bacterial culture was obtained from bile in 6 of 9 dogs. Cholecystitis was diagnosed histologically in 5 dogs and 4 dogs had signs of gallbladder infection solely upon bacterial bile culture. Gallbladder infection was not present with all the mucoceles suggesting that biliary stasis and mucosal hyperplasia may be the primary factors involved in mucocele formation. Based on the results of our study, we suggest two alternate courses of action in the presence of a distended gallbladder with an immobile ultrasonographic stellate or finely striated bile pattern: a cholecystectomy when clinical or biochemical signs of hepatobiliary disease are present or a medical treatment (antibiotics and choleretics) and patient monitoring by follow-up ultrasound examinations when the patient does not have clinical or biochemical abnormalities. An aerobic bile culture should be obtained in all patients, by ultrasound-guided fine needle aspirate or at surgery. 相似文献