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The Sensitivity and Specificity of Radiology and Histopathology in the Diagnosis of Posttraumatic Osteomyelitis. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1633204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryThe sensitivity and specificity of radiology and histopathology in the diagnosis of post-traumatic osteomyelitis was determined. Post-traumatic osteomyelitis was created in one tibia of each of 31 dogs. Fifteen dogs did not receive treatment and sixteen dogs were treated with clindamycin (11 mg/kg body weight q 12 h, PO) for 28 days. At 8 wks post-inoculation week, S. aureus was isolated from nine of 31 dogs. Bacteriological reculture was the standard diagnostic test for osteomyelitis and was used as the standard for comparison in the calculations of the sensitivity and specificity of both radiology and histopathology. The sensitivity of radiology (radiological consensus of three radiologists) in the diagnosis of post-traumatic osteomyelitis at 8 weeks post-inoculation was 62.5% with a range among individual radiologists from 37.5% to 62.5%. The specificity of radiology (consensus) in the diagnosis of posttraumatic osteomyelitis at 8 weeks post-inoculation was 57.1% with a range among individual radiologists from 28.5% to 95.2%. The sensitivity of histopathology in the diagnosis of post-traumatic osteomyelitis at 8 weeks post-inoculation was 33.3%. The specificity of histopathology in the diagnosis of post-traumatic osteomyelitis at 8 weeks post-inoculation was 86.3%.
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Abstract
A 13-month-old Rottweiler was presented with a lameness on the left front leg. The CT scan revealed a large fragmented coronoid process in the elbow joint which was not demonstrable on regular radiographs.
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Displacement of a Functional Femoral Pseudoarthrosis in a Dog. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1633106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A mature mixed breed dog was evaluated for acute onset of non-weight-bearing lameness involving the right hind limb. The dog had, reportedly, walked normally for the previous three years. A diagnosis of acute displacement of a functional femoral pseudoarthrosis was made. The pseudoarthrosis was stabilized using a dynamic compression bone plate and an autogenous cancellous bone graft. The dog was walking normally five months after the operation.
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Health effects following chronic dosing with tungsten-iron and tungsten-polymer shot in adult game-farm mallards. J Wildl Dis 2001; 37:451-8. [PMID: 11504218 DOI: 10.7589/0090-3558-37.3.451] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Permanent approval of shot composed of tungsten-iron and tungsten-polymer for waterfowl hunting by the U.S. Fish and Wildlife Service was pending the results of the present study that examined the health and reproductive effects of the two shot types on mallards (Anas platyrhynchos) over a 150-day period. We collected data pertaining to the effects of tungsten-iron and tungsten-polymer shot on mortality, body weight, organ weight, tissue pathology, and shot erosion. Thirty-two bird groups (sexes equal) of adult mallards were dosed orally with eight #4 steel shot (control), eight #4 tungsten-iron shot, or eight #4 tungsten-polymer shot on days 0, 30, 60, 90, and 120 of a 150-day trial (26 January 1998 to 25 June 1998). An additional 12 mallards (sexes equal) were dosed orally with eight #4 lead shot (positive control) on day 0 of the study. All lead-dosed ducks died by day 25, whereas no ducks died in the other treatment groups. Significant liver hemosiderosis was present in all control and tungsten-iron-dosed males, in five of eight control and three of eight tungsten-iron-dosed females, and in one tungsten-polymer-dosed male examined. The rate of shot erosion was highest for tungsten-polymer shot (99%), followed by tungsten-iron (72%), and steel (55%) shot. Tungsten-iron or tungsten-polymer shot repeatedly administered to adult mallards did not have deleterious health effects during the 150-day trial based on mortality, body weights, organ weights, and histology of the liver and kidneys.
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Radiographic diagnosis: pericardioperitoneal diaphragmatic hernia and cholelithiasis in a dog. Vet Radiol Ultrasound 2001; 42:308-10. [PMID: 11499705 DOI: 10.1111/j.1740-8261.2001.tb00945.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Abstract
OBJECTIVE To develop a free vascularized tibial bone graft based on the periosteal saphenous blood supply. STUDY DESIGN Preliminary anatomic study of medial tibial blood supply. In vivo comparison of a vascularized and avascular tibial bone graft. ANIMALS Nine canine cadavers; 14 healthy adult dogs that weighed 25 to 32 kg. METHODS An anatomic study of the vascular supply of the medial aspect of the tibia was performed using the Spalteholz technique. A bone graft consisting of the medial aspect of the tibia was transferred to a mandibular defect as a vascularized graft in 7 dogs and as an avascular graft in 7 dogs. Bone scans were performed to evaluate graft perfusion. Radiographic evaluation of the mandibles and tibias was performed. The dogs were killed after 60 days, five mandibles from each group were examined histologically, and two from each group were evaluated using the Spalteholz technique. RESULTS The saphenous vascular pedicle provides vascular perfusion to the medial tibial cortex. Bone scans and radiographic evaluations were consistent with viable bone in the vascularized grafts, and nonviable bone in the avascular grafts. Histological examination revealed live, healing bone in vascular grafts and necrotic bone in avascular grafts. Spalteholz evaluation revealed many small arborizing vessels in the vascular grafts and no organized vasculature in the avascular grafts. CONCLUSIONS The vascularized medial tibial cortical bone graft survived and proceeded to bony union in the mandibular body defect more readily than the avascular graft in this experimental model. CLINICAL RELEVANCE A vascularized medial tibial bone graft is a suitable free graft for use in reconstructing bone defects in dogs.
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Prevention of irradiation-induced esophagitis by plasmid/liposome delivery of the human manganese superoxide dismutase transgene. RADIATION ONCOLOGY INVESTIGATIONS 1999. [PMID: 10492161 DOI: 10.1002/(sici)1520-6823(1999)7:4<204::aid-roi2>3.0.co;2-s] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Esophagitis is a major toxicity of radiation therapy for nonsmall-cell lung cancer. Intraesophageal injection of manganese superoxide dismutase (MnSOD) plasmid/liposome complexes (1 mg of the pRK5-MnSOD plasmid containing the human MnSOD transgene in a 0.15 ml volume of lipofectin) before irradiation was carried out to attempt to prevent irradiation esophagitis. In control noninjected male C3H/HeNsd mice, esophagitis was induced by single fraction 3,500 cGy irradiation. Histopathology at 4 days revealed vacuole formation in squamous lining cells, separation of the squamous layer from the underlying muscle layer, ulceration at 7 days, and dehydration and death by 30 days. MnSOD plasmid/liposome complex-injected mice showed transcription of the human MnSOD transgene message in esophageal squamous lining cells by nested reverse transcriptase-polymerase chain reaction (RT-PCR) increased MnSOD biochemical activity 24 h after injection, decreased vacuole formation at day 4 (P < 0.001) after 3,500 cGy thoracic irradiation, and improved survival (P = 0.0009). In contrast, groups of mice receiving LacZ (bacterial beta-galactosidase gene) plasmid/liposome complexes or liposomes containing no DNA before 3,500 cGy irradiation showed an unaltered irradiation histopathology and decreased survival. Mice receiving intraesophageal MnSOD plasmid/liposomes followed 8 h later by human equivalent doses of Taxol (1.4 mg/kg) and carboplatin (2.5 mg/kg), then 15 h later 3,300 cGy irradiation, showed increased survival, compared with irradiated control or LacZ plasmid/liposome groups. Thus, overexpression of the human MnSOD transgene in the esophagus can prevent irradiation-induced esophagitis in the mouse model.
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Prevention of irradiation-induced esophagitis by plasmid/liposome delivery of the human manganese superoxide dismutase transgene. RADIATION ONCOLOGY INVESTIGATIONS 1999; 7:204-17. [PMID: 10492161 DOI: 10.1002/(sici)1520-6823(1999)7:4<204::aid-roi2>3.0.co;2-s] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Esophagitis is a major toxicity of radiation therapy for nonsmall-cell lung cancer. Intraesophageal injection of manganese superoxide dismutase (MnSOD) plasmid/liposome complexes (1 mg of the pRK5-MnSOD plasmid containing the human MnSOD transgene in a 0.15 ml volume of lipofectin) before irradiation was carried out to attempt to prevent irradiation esophagitis. In control noninjected male C3H/HeNsd mice, esophagitis was induced by single fraction 3,500 cGy irradiation. Histopathology at 4 days revealed vacuole formation in squamous lining cells, separation of the squamous layer from the underlying muscle layer, ulceration at 7 days, and dehydration and death by 30 days. MnSOD plasmid/liposome complex-injected mice showed transcription of the human MnSOD transgene message in esophageal squamous lining cells by nested reverse transcriptase-polymerase chain reaction (RT-PCR) increased MnSOD biochemical activity 24 h after injection, decreased vacuole formation at day 4 (P < 0.001) after 3,500 cGy thoracic irradiation, and improved survival (P = 0.0009). In contrast, groups of mice receiving LacZ (bacterial beta-galactosidase gene) plasmid/liposome complexes or liposomes containing no DNA before 3,500 cGy irradiation showed an unaltered irradiation histopathology and decreased survival. Mice receiving intraesophageal MnSOD plasmid/liposomes followed 8 h later by human equivalent doses of Taxol (1.4 mg/kg) and carboplatin (2.5 mg/kg), then 15 h later 3,300 cGy irradiation, showed increased survival, compared with irradiated control or LacZ plasmid/liposome groups. Thus, overexpression of the human MnSOD transgene in the esophagus can prevent irradiation-induced esophagitis in the mouse model.
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Acute effects of lead, steel, tungsten-iron, and tungsten-polymer shot administered to game-farm mallards. J Wildl Dis 1998; 34:673-87. [PMID: 9813836 DOI: 10.7589/0090-3558-34.4.673] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Sixteen-bird groups (sexes equal) of adult mallards (Anas platyrhynchos) were orally dosed with eight #4 steel short, eight #4 lead shot, eight BB-size tungsten-iron shot, eight BB-size tungsten-polymer shot, or were sham-dosed and maintained for 30 days (16 January 1996 to 15 February 1996). Half of the lead-dosed ducks (five males, three females) died during the study, whereas no ducks died in the other dosage groups. For lead-dosed ducks, hematocrit and hemoglobin concentration were decreased on day 15 of the trial, but not on day 30. Delta aminolevulinic acid dehydratase activity in lead-dosed ducks was lower when compared to steel-dosed ducks only. Plasma activities of selected enzymes were elevated in lead-dosed ducks when compared to enzyme activities of ducks in the other groups. For lead-dosed ducks, relative heart, liver, and kidney weights increased in comparison to relative weights of those organs of ducks in other groups. Histology of tissues indicated that renal nephrosis accompanied by biliary stasis was present in the eight lead-dosed ducks that died. For the eight lead-dosed ducks that survived, six had mild to severe biliary stasis. Mild biliary stasis was noted in five tungsten-iron dosed ducks and three tungsten-polymer dosed ducks. Amounts of lead in the femur, liver, and kidneys were higher in lead-dosed ducks than in ducks of the other four groups. Small amounts of tungsten were detected in the femur and kidneys of two tungsten-polymer dosed ducks. Higher concentrations of tungsten were detected in the femur, liver, and kidneys of all tungsten-iron dosed ducks. The rate of shot erosion was highest (80%) for the tungsten-polymer shot, followed by tungsten-iron (55%), lead (50%), and steel shot (33%). Results indicated that tungsten-iron or tungsten-polymer shot (8 shot/duck) orally administered to mallards did not adversely affect them during a 30-day trial.
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Clinical relevance of the microvasculature of the equine proximal sesamoid bone. Am J Vet Res 1995; 56:720-4. [PMID: 7653878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The blood supply to the proximal sesamoid bone of the equine forelimb was examined in 18 cadaver limbs from adult horses, using x-ray computed tomography and a tissue-clearing (Spalteholz) technique. Results of the study indicated that the proximal sesamoid bones were supplied by multiple branches of the medial and lateral palmar digital arteries, which entered the proximal half of the bones on their non-articular, abaxial surface. After entering the bone, the vessels traverse dorsally, axially, and distally, arborizing into several smaller branches that appear to supply the entire bone. The major branches of these vessels reside in bony canals, the orientation and distribution of which parallel the radiographic lucencies seen in horses with sesamoiditis and correspond to the configuration of apical fracture patterns.
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Changes in renal function associated with treatment of hyperthyroidism in cats. Am J Vet Res 1994; 55:1745-9. [PMID: 7887521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We measured glomerular filtration rate (GFR) estimated by plasma disappearance of 99mTc-labeled diethylenetriaminepentaacetic acid, serum concentrations of thyroxine (T4), creatinine, and urea nitrogen, and urine specific gravity in 13 cats with naturally acquired hyperthyroidism before and 30 days after treatment by bilateral thyroidectomy, and in a group of 11 control cats. Mean (+/- SD) serum T4 concentration decreased from a pretreatment value of 120.46 (+/- 39.21) nmol/L to a posttreatment value of 12.15 (+/- 6.26) nmol/L (P < 0.0001; reference range, 10 to 48 nmol/L). Treatment of hyperthyroidism resulted in a decrease in mean (+/- SD) glomerular filtration rate, from 2.51 (+/- 0.69) ml/kg of body weight/min to a posttreatment value of 1.40 (+/- 0.41) ml/kg/min (P < 0.0001). Mean serum creatinine concentration increased from 1.26 (+/- 0.34) mg/dl to 2.05 (+/- 0.60) mg/dl (P < 0.01). Mean serum urea nitrogen concentration increased from 26.62 (+/- 6.83) mg/dl to a mean postthyroidectomy concentration of 34.92 (+/- 8.95) mg/dl (P < 0.01). All changes were significant. Two cats developed overt renal azotemia after treatment of hyperthyroidism. Our results provide further evidence that treatment of hyperthyroidism can result in impaired renal function. In addition, our results suggest that, in some instances, thyrotoxicosis might mask underlying chronic renal insufficiency.
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What is your diagnosis? Osteomyelitis of the distal metatarsal physis, metaphysis, and epiphysis. J Am Vet Med Assoc 1994; 204:721-2. [PMID: 8175463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Abstract
This article discusses the production of optimal CT images in small animal patients as well as principles of radiographic interpretation. Technical factors affecting image quality and aiding image interpretation are included. Specific considerations for scanning various anatomic areas are given, including indications and potential pitfalls. Principles of radiographic interpretation are discussed. Selected patient images are illustrated.
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Repair of a proximal metatarsal Salter type-II fracture in a foal. J Am Vet Med Assoc 1993; 202:765-8. [PMID: 8454511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Bilateral radiographically persistent proximal third metatarsal physes and concurrent cuboidal bone immaturity were identified in a foal. Repair of a Salter type-II fracture of the left proximal third metatarsal physis was accomplished by use of lag screw fixation. A 6-day-old Arabian foal, intended for use as a show horse, was referred because of severe unilateral hind limb lameness and valgus deformity. A Salter type-II fracture of the proximal portion of the third metacarpal bone was identified radiographically and repaired by use of cancellous lag screws. The fractured limb was further supported with a modified Robert Jones bandage and fiberglass tube cast. Eight weeks after surgery, the colt was sound at a trot and had minimal valgus deformity. At this time, radiography revealed healing of the fracture and implants were removed. Six months after fracture repair, the outcome was considered successful on the basis of a desirable cosmetic result and no detectable lameness at a trot. The proximal third metatarsal physis is generally not radiographically visible in the neonate. This report describes the identification and successful repair of a fracture involving this persistent physis. Other sites of skeletal immaturity were also identified, and should be considered in the evaluation and management of unusual physeal fractures.
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Abstract
The final CT image is actually made of a grid of tiny squares called pixels. The scale of grays assigned to each pixel represents the attenuation of x-rays by the structures in the tomographic slice. Manipulation of the gray scale allows optimal visualization of all the tissues within the slice. This control over the gray scale and the absence of structure superimposition are the advantages of CT over conventional x-ray techniques. The steps used to acquire the final CT image are collection of data from the patient (recording of transmitted x-ray intensities from many angles), computer processing of data (mathematical calculation of attenuation of each structure in the tomographic slice), image display (assigning of appropriate gray scale to CT image to evaluate all structures), and data storage (recording series of tomographic images on x-ray film and archiving image data for later review). Common image artifacts that must be identified and interpreted as such include aliasing, ring artifacts, beam hardening effect, metal, motion, partial volume averaging, and streaking from out-of-field objects.
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What is your diagnosis? Deep fistula with possible foreign body. J Am Vet Med Assoc 1991; 199:923-4. [PMID: 1769883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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What is your diagnosis? Radiologic diagnosis--patent ductus arteriosus. J Am Vet Med Assoc 1991; 199:499-500. [PMID: 1917667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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What is your diagnosis? Diffuse pulmonary interstitial density, splenomegaly, and generalized lymphadenopathy. J Am Vet Med Assoc 1991; 199:117-8. [PMID: 1885322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Bilateral granulomatous guttural pouch infection due to Mycobacterium avium complex in a horse. Vet Pathol 1990; 27:133-5. [PMID: 2345938 DOI: 10.1177/030098589002700213] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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What is your diagnosis? Retropharyngeal abscess and cellulitis associated with a metallic foreign body. J Am Vet Med Assoc 1989; 195:382-3. [PMID: 2768067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Radiographic diagnosis of esophageal diseases in dogs and cats. SEMINARS IN VETERINARY MEDICINE AND SURGERY (SMALL ANIMAL) 1989; 4:179-87. [PMID: 2697920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Extraskeletal osteosarcoma in two dogs. J Am Vet Med Assoc 1989; 194:1452-6. [PMID: 2722641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Extraskeletal osteosarcoma (ESOS) of the spleen and jejunum was diagnosed in 2 dogs. As an extremely uncommon type of tumor that has proven difficult to treat, ESOS is associated with high rate of local recurrence and metastatic disease. Extraskeletal osteosarcoma principally affects older dogs, has no apparent breed predilection, and may develop more frequently in males. The cause of ESOS is unknown, but may involve malignant metaplasia of pluripotential mesenchymal cells into osteoblasts. Macroscopically, ESOS usually is observed as a hard mass and may appear similar to calcified hematoma or myositis ossificans. The classic radiographic appearance of ESOS is a soft tissue mass with focal mineralization and without adjacent bone involvement.
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Radiographic signs of isolated splenic torsion in dogs: eight cases (1980-1987). J Am Vet Med Assoc 1989; 194:103-6. [PMID: 2914775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abdominal radiographs of 8 dogs with confirmed isolated splenic torsions were evaluated retrospectively. Radiographic signs included suboptimal abdominal detail, displacement of other abdominal organs, loss of visualization of the body of the spleen in its normal position (in the left cranial portion of the abdomen) on the ventrodorsal radiographic view, identification of the spleen in an abnormal location or shape, splenomegaly, and splenic gas. When the spleen location and shape could be identified as abnormal (3 dogs), the spleen appeared folded into a C shape in the central portion of the abdomen on the lateral radiographic view.
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Synovial chondrometaplasia in five dogs. J Am Vet Med Assoc 1987; 191:1417-22. [PMID: 3692983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Synovial chondrometaplasia was diagnosed in 5 dogs. Four dogs improved dramatically after surgical removal of subsynovial nodules, but the fifth improved only slightly. This potentially treatable condition is recognized in human beings, and has been described in dogs in the German scientific literature. Synovial chondrometaplasia should be suspected if numerous joint mice are visualized radiographically, without an obvious inciting cause. It also should be suspected when periarticular osteophytes are found radiographically in unusual locations.
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Recurrent plasmacytic stomatitis-pharyngitis in a cat with esophagitis, fibrosing gastritis, and gastric nematodiasis. J Am Vet Med Assoc 1987; 190:65-7. [PMID: 3818422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Duration of pneumoperitoneum in the dog. Am J Vet Res 1986; 47:176-8. [PMID: 3946900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The duration of pneumoperitoneum was examined in 12 adult and 4 immature dogs. Four dogs were given intra-abdominal injections of 110 ml of air/kg (group 1), 4 were given 55 ml of air/kg (group 2), and 4 were given 27.5 ml of air/kg (group 3). Also, 4 immature dogs were given 110 ml of air/kg (group 4). The number of days from creation of pneumoperitoneum until the radiographic absence of pneumoperitoneum averaged 25 days for group 1, 14 days for group 2, 9 days for group 3, and 17 days for group 4.
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Positive-contrast celiography (peritoneography) for the diagnosis of diaphragmatic hernia in dogs and cats. J Am Vet Med Assoc 1984; 185:295-8. [PMID: 6469831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Focal metaphyseal osteomyelitis following open fracture in three horses. J Am Vet Med Assoc 1983; 183:797-8. [PMID: 6629989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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What is your diagnosis? Irregular mineralized densities in the origin of the long digital extensor and irregular margins with bone lucency of the extensor fossa. J Am Vet Med Assoc 1981; 179:715-6. [PMID: 7341588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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A fistulous tract induced by a foreign body in a dog. VETERINARY MEDICINE, SMALL ANIMAL CLINICIAN : VM, SAC 1980; 75:601-5. [PMID: 6900451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Retrospective study of 350 cases of equine cryptorchidism. J Am Vet Med Assoc 1978; 172:343-6. [PMID: 23371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Equine cryptorchidism was examined by a review of the literature and a retrospective study of 350 horses over a 14-year period. The incidence of left vs right testis retention was nearly equal. On the left side, 75.2% of the retained testes were retained abdominally and 24.8% inguinally; on the right side, 41.8% of the retained testes were retained abdominally and 58.2% inguinally. Preoperative diagnosis by rectal palpation of the vaginal rings was considered a valuable technique, with 87.9% accuracy in 190 horses. Invasive and nonivasive surgical techniques for abdominal cryptorchidectomy and associated complications were compared. The results supported the technique of traction on gonadal structures outside the abdominal cavity (noninvasive) as superior to techniques requiring intraabdominal manipulation (invasive).
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Nasal polyp in a horse. VETERINARY MEDICINE, SMALL ANIMAL CLINICIAN : VM, SAC 1976; 71:1453-66. [PMID: 1049465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Equine granulosa cell tumors. J Am Vet Med Assoc 1975; 167:148-51. [PMID: 1150506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Unilateral ovariectomy was performed on 3 mares affected with granulosa cell tumors. Tumor fluid in each mare was found to contain estrogen, testosterone, and progesterone. In 2 mares, preoperative blood plasma concentrations of these hormones were comparable to those of a series of clinically normal mares. The other mare, which had a history of aggressive, masculine behavior, had higher testosterone content in the tumor fluid and in the preoperative blood sample. After surgical removal of the tumors, each mare developed follicles and ovulated with the remaining ovary. Each was eventually bred and 2 conceived. The probability of metastasis of these tumors in mares appears uncertain. Data from other species suggests a guarded long-term prognosis may be justified.
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Multiple ureteral defects in a Belgian foal. VETERINARY MEDICINE, SMALL ANIMAL CLINICIAN : VM, SAC 1975; 70:819-21. [PMID: 1041091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Surgical repair of cleft soft palate in a foal. VETERINARY MEDICINE, SMALL ANIMAL CLINICIAN : VM, SAC 1973; 68:159-62. [PMID: 4486938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Myopathy in a foal. VETERINARY MEDICINE, SMALL ANIMAL CLINICIAN : VM, SAC 1972; 67:1333-4. [PMID: 4486546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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