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Lee D, Yun T, Koo Y, Chae Y, Chang D, Yang MP, Kang BT, Kim H. 18F-FDG PET/CT image findings of a dog with adrenocortical carcinoma. BMC Vet Res 2022; 18:15. [PMID: 34980137 PMCID: PMC8722145 DOI: 10.1186/s12917-021-03102-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 12/07/2021] [Indexed: 12/02/2022] Open
Abstract
Background In human medicine, 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) has been used to differentiate between benign and malignant adrenal tumors and to identify metastases. However, canine adrenocortical carcinomas identified by 18F-FDG PET/computed tomography (CT) have not been reported. Case presentation A 13-year-old, castrated male, Cocker Spaniel dog with severe systolic hypertension exhibited an adrenal mass approximately 3.6 cm in diameter on ultrasonography. There was no evidence of pulmonary metastasis or vascular invasion on thoracic radiography and abdominal ultrasonography, respectively. 18F-FDG PET/CT was performed to identify the characteristics of the adrenal mass and the state of metastasis. One hour after injection of 5.46 MBq/kg 18F-FDG intravenously, the peripheral region of the adrenal mass visually revealed an increased 18F-FDG uptake, which was higher than that of the liver, and the central region of the mass exhibited necrosis. The maximal standardized uptake value (SUV) of the adrenal mass was 3.24; and relative SUV, calculated by dividing the maximal SUV of the adrenal tumor by the mean SUV of the normal liver, was 5.23. Adrenocortical carcinoma was tentatively diagnosed and surgical adrenalectomy was performed. Histopathologic examination of the resected adrenal mass revealed the characteristics of an adrenocortical carcinoma. After adrenalectomy, systolic blood pressure reduced to below 150 mmHg without any medication. Conclusion This is the first case report of 18F-FDG PET/CT findings in a dog with suspected adrenocortical carcinoma and may provide valuable diagnostic information for adrenocortical carcinoma in dogs.
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Affiliation(s)
- Dohee Lee
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Taesik Yun
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Yoonhoi Koo
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Yeon Chae
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Dongwoo Chang
- Department of Veterinary Imaging, Veterinary Teaching Hospital, College of Veterinary Medicine, Cheongju, Chungbuk, 28644, South Korea
| | - Mhan-Pyo Yang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Byeong-Teck Kang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Hakhyun Kim
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea.
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2
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Sasaki N, Oo T, Yasuda Y, Ichise T, Nagata N, Yokoyama N, Sasaoka K, Morishita K, Nakayama SM, Ishizuka M, Nakamura K, Takiguchi M, Ikenaka Y. Simultaneous steroids measurement in dogs with hyperadrenocorticism using a column-switching liquid chromatography-tandem mass spectrometry method. J Vet Med Sci 2021; 83:1634-1642. [PMID: 34544959 PMCID: PMC8636878 DOI: 10.1292/jvms.21-0406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
We developed an analytical method using an on-line column-switching liquid chromatography with triple quadrupole mass spectrometry (LC/MS/MS) for quantifying multiple steroids in serum.
Using the developed method, we evaluated the serum concentration of nine steroids (cortisol, corticosterone, cortisone, 11-deoxycortisol, 21-deoxycortisol, deoxycorticosterone, progesterone,
17α-OH-progesterone and aldosterone) in dogs with hyperadrenocorticism (HAC). Serum was mixed with stable isotope internal standards and thereafter purified by the automated column-switching
system. The limit of detection ranged 2–16 pg/ml for nine steroids. In the baseline samples, five steroids (cortisol, corticosterone, cortisone, 11-deoxycortisol, and 17α-OH-progesterone)
were detected in all dogs. The concentrations of cortisone, 11-deoxycortisol, and 17α-OH-progesterone in dogs with HAC (n=19) were significantly higher those in dogs without HAC (n=15,
P<0.02). After the adrenocorticotropic hormone stimulation test, six steroids (cortisol, corticosterone, cortisone, 11-deoxycortisol, 17α-OH-progesterone, and
deoxycorticosterone) were above the limit of quantification in all dogs. Cortisol, corticosterone, cortisone, and deoxycorticosterone concentrations of dogs with HAC were significantly
higher than those of dogs without HAC (P<0.02). In addition, 11-deoxycortisol and 17α-OH-progesterone concentration was higher in dogs with HAC than in dogs without HAC
(P=0.044 and P=0.048, respectively). The on-line column-switching LC/MS/MS would be feasible for measuring multiple steroids in dog serum. The results
suggest that cortisone, 11-deoxycortisol, and 17α-OH-progesterone would be related to HAC. Further studies are warranted to assess the clinical feasibility of steroid profile in dogs with
HAC.
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Affiliation(s)
- Noboru Sasaki
- Laboratory of Veterinary Internal Medicine, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Thandar Oo
- Laboratory of Veterinary Internal Medicine, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Yoshikazu Yasuda
- Laboratory of Veterinary Internal Medicine, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Takahiro Ichise
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Noriyuki Nagata
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita 19-jo Nishi 10-chome, Kita-ku, Sapporo, Hokkaido 060-0819, Japan
| | - Nozomu Yokoyama
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita 19-jo Nishi 10-chome, Kita-ku, Sapporo, Hokkaido 060-0819, Japan
| | - Kazuyoshi Sasaoka
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita 19-jo Nishi 10-chome, Kita-ku, Sapporo, Hokkaido 060-0819, Japan
| | - Keitaro Morishita
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita 19-jo Nishi 10-chome, Kita-ku, Sapporo, Hokkaido 060-0819, Japan
| | - Shouta Mm Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Kensuke Nakamura
- Laboratory of Veterinary Internal Medicine, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Mitsuyoshi Takiguchi
- Laboratory of Veterinary Internal Medicine, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan.,Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita 19-jo Nishi 10-chome, Kita-ku, Sapporo, Hokkaido 060-0819, Japan.,One Health Research Center, Hokkaido University, Kita 18-jo Nishi 9-chome, Kita-ku, Sapporo, Hokkaido 060-0818, Japan.,Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, North West, South Africa
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3
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Park SM, Kim KB, Song WJ, Youn HY. Successful treatment of occult hyperadrenocorticism with mitotane but not trilostane in a dog. Vet Med Sci 2021; 7:1150-1153. [PMID: 33755348 PMCID: PMC8294403 DOI: 10.1002/vms3.482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 02/05/2021] [Accepted: 03/09/2021] [Indexed: 11/06/2022] Open
Abstract
Background Occult (or atypical) hyperadrenocorticism (HAC) shows clinical signs and laboratory abnormalities similar to classic hyperadrenocorticism, but normal signs in routine screening tests such as the corticotropin (ACTH) stimulation test and low‐dose dexamethasone suppression test (LDDST). Here, we describe a case of occult HAC in a Yorkshire terrier treated with mitotane. Case An 11‐year‐old spayed female presented to the Veterinary Teaching Hospital of Seoul National University because of respiratory distress symptoms, polyphagia, and polydipsia, suggestive of HAC. In abdominal sonography, enlargement of the caudal pole of the left adrenal gland was found, but the cortisol level of post‐ACTH stimulation test was below the cut‐off value, and LDDST was negative. To finalise the diagnosis of occult HAC, 17‐hydroxyprogesterone (17‐OHP) was examined. The concentrations of 17‐OHP (pre‐ and post‐ACTH stimulation) were found to be elevated. As occult HAC was highly suspected, we prescribed trilostane for trial therapy. At first, the clinical signs improved, but they later worsened. We changed medication as trilostane to mitotane, and the symptoms were relieved after mitotane administration. Conclusion This is a unique case of occult HAC in which the response to mitotane was better than trilostane.
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Affiliation(s)
- Su-Min Park
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Kyeong-Bo Kim
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Woo-Jin Song
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea
| | - Hwa-Young Youn
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
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4
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Miceli DD, Pignataro OP, Castillo VA. Concurrent hyperadrenocorticism and diabetes mellitus in dogs. Res Vet Sci 2017; 115:425-431. [PMID: 28759861 DOI: 10.1016/j.rvsc.2017.07.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 06/13/2017] [Accepted: 07/21/2017] [Indexed: 01/23/2023]
Abstract
Hyperadrenocorticism (HAC) and diabetes mellitus (DM) are two diseases that can occur concurrently in dogs. The objective of this study was to evaluate the coexistence of HAC and DM, and the risk factors involved that could contribute to the development of DM in dogs with HAC. A total of 235 dogs with HAC were studied and, according to their fasting glycemia, they were divided into three groups: <5.6mmol/L, between 5.6 and 10.08mmol/L and >10.08mmol/L. The following parameters were evaluated: age, gender, cause of HAC, body condition, glycemia, total cholesterol, triglycerides, urinary cortisol:creatinin ratio (UCCR) and survival time. A 13.61% concurrence of HAC and DM was observed. Dogs with a fasting glycemia >5.6mmol/L, with dislipemia, with Pituitary-Dependent Hyperadrenocorticism, UCCR >100×10-6 and non-castrated females showed a higher risk of developing DM. The development of DM in dogs with HAC reduces the survival time.
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Affiliation(s)
- D D Miceli
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Cátedra de Clínica Médica de Pequeños Animales y Hospital Escuela de Medicina Veterinaria, Unidad de Endocrinología, Av. Chorroarín 280, Buenos Aires CP 1427, Argentina; Laboratorio de Endocrinología Molecular y Transducción de Señales, Instituto de Biología y Medicina Experimental - CONICET, Vuelta de Obligado 2490, Buenos Aires CP 1428, Argentina
| | - O P Pignataro
- Laboratorio de Endocrinología Molecular y Transducción de Señales, Instituto de Biología y Medicina Experimental - CONICET, Vuelta de Obligado 2490, Buenos Aires CP 1428, Argentina
| | - V A Castillo
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Cátedra de Clínica Médica de Pequeños Animales y Hospital Escuela de Medicina Veterinaria, Unidad de Endocrinología, Av. Chorroarín 280, Buenos Aires CP 1427, Argentina.
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5
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Hoffrogge S, Fels L, Schmicke M, Mischke R. [Atypical Cushing's syndrome in a dog. A case report]. TIERARZTLICHE PRAXIS. AUSGABE K, KLEINTIERE/HEIMTIERE 2017; 45:186-192. [PMID: 28447709 DOI: 10.15654/tpk-160255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 09/27/2016] [Indexed: 06/07/2023]
Abstract
In a 12-year-old male Labrador Retriever, presented due to other disease symptoms, clinical signs of hyperadrenocorticism (polyuria, polydipsia, abdominal distention, muscle atrophy) were an incidental finding. Abnormal laboratory results and sonographic findings of the adrenal glands, but negative low-dose dexamethasone suppression tests with low basal cortisol concentrations, a negative andrenocorticotropic hormone (ACTH)-stimulation test and exclusion of iatrogenic hyperadrenocorticism, suggested an atypical hyperadrenocorticism (AHAC). Results of further examinations, particularly stimulation of progesterone production by ACTH (0 h value: 0.21 ng/ml; 1 h value: 4.9 ng/ml) and good response to therapy with trilostane, supported this diagnosis. However, it has to be critically considered, whether and to what extent additionally present diseases (arthroses, testicular tumour) played a role regarding the symptoms and laboratory results in this dog. This case illustrates the difficulties with the diagnosis of AHAC.
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Affiliation(s)
| | | | | | - Reinhard Mischke
- Prof. Dr. Reinhard Mischke, Klinik für Kleintiere, Stiftung Tierärztliche Hochschule Hannover, Bünteweg 9, 30559 Hannover, E-Mail:
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6
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Kojima K, Ohno K, Kanemoto H, Goto-Koshino Y, Fukushima K, Tsujimoto H. Analysis of serum corticosteroid-induced alkaline phosphatase isoenzyme in dogs with hepatobiliary diseases. J Small Anim Pract 2017; 58:257-262. [PMID: 28133732 DOI: 10.1111/jsap.12623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 07/21/2016] [Accepted: 09/25/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To reveal the relationship between canine corticosteroid-induced alkaline phosphatase isoenzyme activity and hepatobiliary diseases. MATERIALS AND METHODS Retrospective analysis of the relationship between serum corticosteroid-induced alkaline phosphatase activity and diagnosis, serum cortisol concentration and alanine transferase activity in dogs with hepatobiliary diseases. Dogs with a history of glucocorticoid administration were excluded. RESULTS Seventy-two dogs with hepatobiliary diseases were analysed. The serum corticosteroid-induced alkaline phosphatase concentration was increased in dogs with hepatobiliary diseases. There was no correlation between serum cortisol concentration and serum corticosteroid-induced alkaline phosphatase percentage or activity. CLINICAL SIGNIFICANCE Dogs with hepatobiliary disease can exhibit high serum alkaline phosphatase activity even if the dogs have not been administrated glucocorticoids and the serum cortisol concentration is normal.
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Affiliation(s)
- K Kojima
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - K Ohno
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - H Kanemoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Y Goto-Koshino
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - K Fukushima
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - H Tsujimoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
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7
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Komáromy AM, Abrams KL, Heckenlively JR, Lundy SK, Maggs DJ, Leeth CM, MohanKumar PS, Petersen‐Jones SM, Serreze DV, Woerdt A. Sudden acquired retinal degeneration syndrome (SARDS) – a review and proposed strategies toward a better understanding of pathogenesis, early diagnosis, and therapy. Vet Ophthalmol 2015; 19:319-31. [DOI: 10.1111/vop.12291] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- András M. Komáromy
- College of Veterinary Medicine Michigan State University 736 Wilson Road East Lansing MI 48824 USA
- School of Veterinary Medicine University of Pennsylvania 3900 Delancey Street Philadelphia PA 19104 USA
| | | | - John R. Heckenlively
- Kellogg Eye Center University of Michigan 1000 Wall Street Ann Arbor MI 48105 USA
| | - Steven K. Lundy
- Division of Rheumatology Department of Internal Medicine University of Michigan 300 North Ingalls Building Ann Arbor MI 48109 USA
| | - David J. Maggs
- Department of Surgical and Radiological Sciences School of Veterinary Medicine University of California‐Davis 1 Shields Avenue Davis CA 95616 USA
| | - Caroline M. Leeth
- Department of Animal and Poultry Sciences College of Agriculture and Life Sciences 175 West Campus Drive, MC 0306, 3280 Litton Reaves Hall Virginia Tech Blacksburg VA 24061 USA
| | - Puliyur S. MohanKumar
- Department of Pathobiology and Diagnostic Investigation College of Veterinary Medicine Michigan State University East Lansing MI 48824 USA
| | - Simon M. Petersen‐Jones
- College of Veterinary Medicine Michigan State University 736 Wilson Road East Lansing MI 48824 USA
| | | | - Alexandra Woerdt
- The Animal Medical Center 510 East 62nd Street New York NY 10065 USA
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8
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Frank LA, Henry GA, Whittemore JC, Enders BD, Mawby DI, Rohrbach BW. Serum cortisol concentrations in dogs with pituitary-dependent hyperadrenocorticism and atypical hyperadrenocorticism. J Vet Intern Med 2014; 29:193-9. [PMID: 25411029 PMCID: PMC4858107 DOI: 10.1111/jvim.12500] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 08/15/2014] [Accepted: 10/13/2014] [Indexed: 12/03/2022] Open
Abstract
Background Atypical hyperadrenocorticism (AHAC) is considered when dogs have clinical signs of hypercortisolemia with normal hyperadrenocorticism screening tests. Hypothesis/Objectives To compare cortisol concentrations and adrenal gland size among dogs with pituitary‐dependent hyperadrenocorticism (PDH), atypical hyperadrenocorticism (AHAC), and healthy controls. Animals Ten healthy dogs, 7 dogs with PDH, and 8 dogs with AHAC. Method Dogs were prospectively enrolled between November 2011 and January 2013. Dogs were diagnosed with PDH or AHAC based on clinical signs and positive screening test results (PDH) or abnormal extended adrenal hormone panel results (AHAC). Transverse adrenal gland measurements were obtained by abdominal ultrasound. Hourly mean cortisol (9 samplings), sum of hourly cortisol measurements and adrenal gland sizes were compared among the 3 groups. Results Hourly (control, 1.4 ± 0.6 μg/dL; AHAC, 2.9 ± 1.3; PDH, 4.3 ± 1.5) (mean, SD) and sum (control, 11.3 ± 3.3; AHAC, 23.2 ± 7.7; PDH, 34.7 ± 9.9) cortisol concentrations differed significantly between the controls and AHAC (P < .01) and PDH (P < .01) groups. Hourly (P < .01) but not sum (P = .27) cortisol concentrations differed between AHAC and PDH dogs. Average transverse adrenal gland diameter of control dogs (5.3 ± 1.2 mm) was significantly less than dogs with PDH (6.4 ± 1.4; P = .02) and AHAC (7.2 ± 1.5; P < .01); adrenal gland diameter did not differ (P = .18) between dogs with AHAC and PDH. Conclusions and Clinical Importance Serum cortisol concentrations in dogs with AHAC were increased compared to controls but less than dogs with PDH, while adrenal gland diameter was similar between dogs with AHAC and PDH. These findings suggest cortisol excess could contribute to the pathophysiology of AHAC.
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Affiliation(s)
- L A Frank
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN
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9
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Arenas C, Pérez-Alenza D, Melián C. Clinical features, outcome and prognostic factors in dogs diagnosed with non-cortisol-secreting adrenal tumours without adrenalectomy: 20 cases (1994-2009). Vet Rec 2013; 173:501. [DOI: 10.1136/vr.101691] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- C. Arenas
- Department of Small Animal Medicine and Surgery Clinical Sciences; School of Veterinary Medicine; University Complutense of Madrid; Avda. Puerta de Hierro s/n 28040 Madrid 28040 Spain
| | - D. Pérez-Alenza
- Department of Small Animal Medicine and Surgery Clinical Sciences; School of Veterinary Medicine; University Complutense of Madrid; Avda. Puerta de Hierro s/n 28040 Madrid 28040 Spain
| | - C. Melián
- Clínica Veterinaria Atlántico; Pi y Margall 42 Las Palmas Gran Canaria 35006 Spain
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10
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Behrend EN, Kooistra HS, Nelson R, Reusch CE, Scott-Moncrieff JC. Diagnosis of spontaneous canine hyperadrenocorticism: 2012 ACVIM consensus statement (small animal). J Vet Intern Med 2013; 27:1292-304. [PMID: 24112317 DOI: 10.1111/jvim.12192] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 07/05/2013] [Accepted: 08/06/2013] [Indexed: 11/28/2022] Open
Abstract
This report offers a consensus opinion on the diagnosis of spontaneous canine hyperadrenocorticism. The possibility that a patient has hyperadrenocorticism is based on the history and physical examination. Endocrine tests should be performed only when clinical signs consistent with HAC are present. None of the biochemical screening or differentiating tests for hyperadrenocorticism are perfect. Imaging can also play a role. Awareness of hyperadrenocorticism has heightened over time. Thus, case presentation is more subtle. Due to the changes in manifestations as well as test technology the Panel believes that references ranges should be reestablished. The role of cortisol precursors and sex hormones in causing a syndrome of occult hyperadrenocorticism remains unclear.
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Affiliation(s)
- E N Behrend
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL
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11
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Monroe W, Panciera D, Zimmerman K. Concentrations of Noncortisol Adrenal Steroids in Response to ACTH in Dogs with Adrenal-Dependent Hyperadrenocorticism, Pituitary-Dependent Hyperadrenocorticism, and Nonadrenal Illness. J Vet Intern Med 2012; 26:945-52. [DOI: 10.1111/j.1939-1676.2012.00959.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 04/22/2012] [Accepted: 05/09/2012] [Indexed: 11/28/2022] Open
Affiliation(s)
- W.E. Monroe
- Department of Small Animal Clinical Sciences; Virginia-Maryland Regional College of Veterinary Medicine; Virginia Tech; Blacksburg; VA
| | - D.L. Panciera
- Department of Small Animal Clinical Sciences; Virginia-Maryland Regional College of Veterinary Medicine; Virginia Tech; Blacksburg; VA
| | - K.L. Zimmerman
- Department of Biomedical Sciences and Pathobiology; Virginia-Maryland Regional College of Veterinary Medicine; Virginia Tech; Blacksburg; VA
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Davis MK, Schochet RA, Wrigley R. ULTRASONOGRAPHIC IDENTIFICATION OF VASCULAR INVASION BY ADRENAL TUMORS IN DOGS. Vet Radiol Ultrasound 2012; 53:442-5. [DOI: 10.1111/j.1740-8261.2011.01911.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 11/15/2011] [Indexed: 11/28/2022] Open
Affiliation(s)
- Mary K. Davis
- From the Veterinary Cancer Group; Culver City; CA; 90232
| | | | - Robert Wrigley
- Colorado State University Veterinary Teaching Hospital; Ft. Collins; CO; 80526
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13
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McLauchlan G, Knottenbelt C, Augusto M, Helm J, McGrotty Y, Ramsey I. Retrospective evaluation of the effect of trilostane on insulin requirement and fructosamine concentration in eight diabetic dogs with hyperadrenocorticism. J Small Anim Pract 2010; 51:642-8. [DOI: 10.1111/j.1748-5827.2010.01005.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Galac S, Kool MMJ, Naan EC, Daminet S, Mol JA, Kooistra HS. Expression of the ACTH receptor, steroidogenic acute regulatory protein, and steroidogenic enzymes in canine cortisol-secreting adrenocortical tumors. Domest Anim Endocrinol 2010; 39:259-67. [PMID: 20920783 DOI: 10.1016/j.domaniend.2010.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 07/22/2010] [Accepted: 07/26/2010] [Indexed: 11/19/2022]
Abstract
Studies of human adrenocortical tumors (ATs) causing Cushing's syndrome suggest that hypersecretion of cortisol is caused by altered expression of steroidogenic enzymes and that steroidogenesis can only be maintained when there is expression of the ACTH receptor (ACTH-R). Here we report the screening for the mRNA expression of the ACTH-R, steroidogenic acute regulatory protein (StAR), cholesterol side-chain cleavage enzyme, 3β-hydroxysteroid dehydrogenase, 21-hydroxylase (all in 38 cortisol-secreting ATs), 17α-hydroxylase, and 11β-hydroxylase (both in 28 cortisol-secreting ATs). Real-time PCR (RT-PCR) was applied in all samples and was compared with that in normal canine adrenal glands. Messenger-RNA encoding StAR, steroidogenic enzymes, and ACTH-R were present in both normal adrenal glands and cortisol-secreting ATs. The amounts of mRNA encoding StAR and enzymes of the steroidogenic cluster needed for cortisol production did not differ significantly between either adenomas or carcinomas and normal adrenal glands. The amount of mRNA encoding ACTH-R was significantly lower in carcinomas than in normal adrenal glands (P = 0.008). In conclusion, RT-PCR analysis revealed no overexpression of StAR and steroidogenic enzymes in canine cortisol-secreting ATs. Significant downregulation of ACTH-R in carcinomas might be associated with the malignant character of the AT.
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Affiliation(s)
- S Galac
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
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15
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Zimmerman KL, Panciera DL, Panciera RJ, Oliver JW, Hoffmann WE, Binder EM, Randall DC, Kinnarney JH. Hyperphosphatasemia and concurrent adrenal gland dysfunction in apparently healthy Scottish Terriers. J Am Vet Med Assoc 2010; 237:178-86. [DOI: 10.2460/javma.237.2.178] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Brömel C, Feldman EC, Davidson AP, Nelson RW, Kass PH, Esteller Vico A, Labelle P, Munro CJ, Conley AJ. Serum 17alpha-hydroxyprogesterone concentrations during the reproductive cycle in healthy dogs and dogs with hyperadrenocorticism. J Am Vet Med Assoc 2010; 236:1208-14. [PMID: 20513199 DOI: 10.2460/javma.236.11.1208] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine concentrations of 17alpha-hydroxyprogesterone (17OHP) in serum of healthy bitches during various stages of the reproductive cycle and in bitches with hyperadrenocorticism and to compare the dynamics of 17OHP with those of progesterone. DESIGN Prospective evaluation study. ANIMALS 15 healthy sexually intact bitches and 28 spayed bitches with hyperadrenocorticism. PROCEDURES 11 healthy bitches were evaluated during estrus, nonpregnant diestrus, and anestrus (group 1); 4 other healthy bitches were evaluated during pregnancy and after ovariohysterectomy (group 2). Cycle stages were determined via physical examination, vaginal cytologic evaluation, and serum progesterone concentration. Bitches with hyperadrenocorticism were evaluated once at the time of diagnosis (group 3). Serum hormone concentrations were determined with immunoassays. RESULTS In group 1, the serum 17OHP concentration was significantly higher in diestrus (median, 1.8 ng/mL) than in estrus (median, 1.1 ng/mL) and anestrus (median, 0.2 ng/mL) and higher in estrus than in anestrus. Changes in serum progesterone concentrations accounted for 22% (estrus) or 23% (diestrus) of the variation in serum 17OHP concentrations. In group 2, 17OHP and progesterone concentrations were significantly higher during pregnancy than after ovariohysterectomy. The serum 17OHP concentration in group 3 was significantly lower (median, 0.2 ng/mL) than in group 1 in estrus and diestrus and in group 2 during pregnancy (median, 0.7 ng/mL) but was not different from 17OHP concentrations in anestrus or after ovariohysterectomy (median, 0.2 ng/mL). CONCLUSIONS AND CLINICAL RELEVANCE Serum 17OHP concentrations in healthy bitches increased during estrus, diestrus, and pregnancy and at those times were higher than in spayed bitches with hyperadrenocorticism.
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Affiliation(s)
- Catharina Brömel
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
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17
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Abstract
Estradiol concentrations are evaluated in canine serum as part of an adrenal panel used to diagnose atypical Cushing's syndrome and other endocrine abnormalities. Estradiol concentrations are often elevated in dogs without clinical signs of hyperestrogenism, and the significance of this elevation is unknown. The purpose of this study was to estimate the variation in estradiol concentrations in normal dogs. Ten neutered male and female dogs were enrolled in the study. Blood was collected from each dog at 2 h intervals, four times during a given day. This was repeated approximately 1 (week 2) and 5 weeks later (week 6). There was no attempt for a given dog to be started at the exact time or day each week. Results showed that estradiol concentrations ranged from 44.6 to 120.3 pg/mL with a mean of 70.4 pg/mL, which is greater than the upper limit of normal for our laboratory (69 pg/mL). The mean difference between the highest and lowest concentrations for each dog was 28.8 pg/mL, with a range of 12.5-53.5 pg/mL. Mean estradiol concentrations from week 6 (63.2 pg/mL) were significantly lower than those from week 1 (71.4 pg/mL; P=0.015) and week 2 (76.5 pg/mL; P=0.0004). These data show a wide range of variability in estradiol concentration both within and between dogs and that these measurements often exceed the normal ranges established by the laboratory. Therefore, diagnosis of hyperestrogenism or atypical Cushing's syndrome based on increased estradiol concentrations should require compatible clinical presentation of hyperestrogenism together with elevated serum estradiol.
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Affiliation(s)
- Linda A Frank
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
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18
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Behrend EN, Kennis R. Atypical Cushing's Syndrome in Dogs: Arguments For and Against. Vet Clin North Am Small Anim Pract 2010; 40:285-96. [DOI: 10.1016/j.cvsm.2009.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Sobel KE, Williams JE. Pneumothorax secondary to pulmonary thromboembolism in a dog. J Vet Emerg Crit Care (San Antonio) 2009; 19:120-6. [PMID: 19691593 DOI: 10.1111/j.1476-4431.2008.00347.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To describe a case of spontaneous pneumothorax secondary to pulmonary thromboembolism possibly associated with pituitary dependent hyperadrenocorticism. CASE SUMMARY A 7-year-old spayed female Collie weighing 26 kg was referred for evaluation of spontaneous pneumothorax. An exploratory thoracotomy was performed and revealed 2 lung lobes to be diffusely hemorrhagic and they were resected. Histologic examination of multiple sections documented diffuse thromboembolism. A 2-3 cm thrombus was visualized distal to the bifurcation of the pulmonary artery during an echocardiographic examination postoperatively. The dog was discharged to the owner after recovery from surgery. The thrombus had resolved at the 4-week recheck examination. Diagnosis of pituitary dependent hyperadrenocorticism was confirmed based on follow-up endocrine testing. NEW OR UNIQUE INFORMATION PROVIDED This is the first report of pulmonary thromboembolism causing spontaneous pneumothorax in the dog.
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Affiliation(s)
- Keith E Sobel
- Department of Internal Medicine and Critical Care, VCA-Veterinary Referral Associates, Gaithersburg, MD, USA.
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20
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Carter RT, Oliver JW, Stepien RL, Bentley E. Elevations in sex hormones in dogs with sudden acquired retinal degeneration syndrome (SARDS). J Am Anim Hosp Assoc 2009; 45:207-14. [PMID: 19723843 DOI: 10.5326/0450207] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Dogs diagnosed with sudden acquired retinal degeneration syndrome (SARDS) commonly are presented with concurrent clinical, physical, and historical findings consistent with hyperadreno-corticism (HAC) at the time of vision loss. Thirteen dogs diagnosed with SARDS on the basis of complete ophthalmic examination and extinguished bright-flash electroretinogram were evaluated for steroid hormonal abnormalities. Signalment, case history, physical examination, and clinicopathological findings were recorded. Serum cortisol and sex-hormone concentrations were measured before and after adrenocorticotropic hormone (ACTH) stimulation. Clinical signs of HAC, systemic hypertension, and proteinuria were commonly found in dogs with SARDS. Elevations in one or more sex hormones were found in 11 (85%) of 13 dogs (95% confidence interval [CI] 65% to 100%); cortisol was elevated in nine (69%) of 13 dogs (95% CI 44% to 94%). A minority of dogs (three [23%] of 13; 95% CI 0.2% to 46%) exhibited only an increase in adrenal sex hormones. Only one dog had completely normal ACTH stimulation test results. Symptoms of HAC were associated with abnormal ACTH stimulation results. Routine ACTH stimulation testing to evaluate cortisol and sex hormones, blood pressure screening, and urinalysis are recommended in these animals.
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Affiliation(s)
- Renee T Carter
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Drive, Baton Rouge, Louisiana 70803, USA
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21
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Nielsen L, Thompson H, Hammond GJ, Chang YP, Ramsey IK. Central diabetes insipidus associated with primary focal B cell lymphoma in a dog. Vet Rec 2008; 162:124-6. [PMID: 18223271 DOI: 10.1136/vr.162.4.124] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- L Nielsen
- Department of Small Animal Studies, Faculty of Life Sciences, University of Copenhagen, Dyrlaegevej 16, 1870 Frederiksberg, Denmark
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22
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Sieber-Ruckstuhl NS, Boretti FS, Wenger M, Maser-Gluth C, Reusch CE. Evaluation of cortisol precursors for the diagnosis of pituitary-dependent hypercortisolism in dogs. Vet Rec 2008; 162:673-8. [DOI: 10.1136/vr.162.21.673] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- N. S. Sieber-Ruckstuhl
- Clinic for Small Animal Internal Medicine; Vetsuisse Faculty; University of Zurich; Winterthurerstrasse 260 8057 Zurich Switzerland
| | - F. S. Boretti
- Clinic for Small Animal Internal Medicine; Vetsuisse Faculty; University of Zurich; Winterthurerstrasse 260 8057 Zurich Switzerland
| | - M. Wenger
- Clinic for Small Animal Internal Medicine; Vetsuisse Faculty; University of Zurich; Winterthurerstrasse 260 8057 Zurich Switzerland
| | - C. Maser-Gluth
- Steroid Laboratory; Institute of Pharmacology; Ruprecht-Karls University; Im Neuenheimer Feld 366 69120 Heidelberg Germany
| | - C. E. Reusch
- Clinic for Small Animal Internal Medicine; Vetsuisse Faculty; University of Zurich; Winterthurerstrasse 260 8057 Zurich Switzerland
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23
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24
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Russell NJ, Foster S, Clark P, Robertson ID, Lewis D, Irwin PJ. Comparison of radioimmunoassay and chemiluminescent assay methods to estimate canine blood cortisol concentrations. Aust Vet J 2007; 85:487-94. [DOI: 10.1111/j.1751-0813.2007.00232.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Diagnosis of sex steroid excess or hyperadrenocorticism in dogs may be challenging. Unlike Cushing's disease, sex steroid excess may have a multitude of manifestations that differ from standard hyperadrenocorticism. In particular, the clinical scenario of a dog with sex steroid imbalance involves one of three systems: dermatologic, reproductive, or hepatic. The history of a dog with hyperadrenocorticism manifesting as sex steroid imbalance often lacks the classical clinical signs of polydipsia and polyuria. Dogs with sex steroid imbalance will often be of specific breeds such as miniature poodles and exhibit trunkal hair loss as the only sign. There is often involvement of the reproductive system, manifested as the growth of perianal adenomas in neutered male or female dogs. The most common laboratory findings consist of elevations in serum alkaline phosphatase and serum alanine transferase. The following article reviews the etiology, common signalment, clinical signs, and laboratory findings associated with atypical hyperadrenocorticism caused by sex steroid imbalance and then explores the medical, surgical, and radiation treatment options.
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Affiliation(s)
- Deborah S Greco
- Nestle Purina Petcare, One Checkerboard Square, St. Louis, MO 63164, USA.
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26
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Abstract
A presumptive diagnosis of hyperadrenocorticism in dogs can be made from clinical signs, physical examination, routine laboratory tests, and diagnostic imaging findings, but the diagnosis must be confirmed by use of pituitary-adrenal function tests. Screening tests designed to diagnose hyperadrenocorticism include the corticotropin (adrenocorticotropic hormone; ACTH) stimulation test, low-dose dexamethasone suppression test, and the urinary cortisol:creatinine ratio. None of these screening tests are perfect, and all are capable of giving false-negative and false-positive test results. Because of the limitation of these diagnostic tests, screening for hyperadrenocorticism must be reserved for dogs in which the disease is strongly suspected on the basis of historical and clinical findings. Once a diagnosis has been confirmed, the next step in the workup is to use one or more tests and procedures to distinguish pituitary-dependent from adrenal-dependent hyperadrenocorticism. Endocrine tests in this category include the high-dose dexamethasone suppression test and endogenous plasma ACTH measurements. Imaging techniques such as abdominal radiography, ultrasonography, computed tomography, and magnetic resonance imaging can also be extremely helpful in determining the cause.
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Affiliation(s)
- Mark E Peterson
- Bobst Hospital of The Animal Medical Center, New York, New York and the Animal Endocrine Clinic, Bedford Hills, New York, USA.
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27
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Abstract
Endocrine diseases in the dog commonly manifest with dermatological lesions. Hypothyroidism is the most common endocrinopathy and usually presents with alopecia in areas of wear, seborrhea, and recurrent infections. Common clinical signs associated with hyperadrenocorticism include polyuria, polydipsia, and polyphagia. The most common dermatological manifestation of hyperadrenocorticism is bilaterally symmetrical alopecia sparing the head and distal extremities. Pyoderma is a common finding associated with immunosuppression. Less commonly, calcinosus cutis may occur. Sex hormone excess, primarily hyperestrogenism and hyperandrogenism, may also be associated with dermatological signs. Usually, dogs are intact, and the excess production is due to testicular or ovarian neoplasia.
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Affiliation(s)
- Linda A Frank
- Diplomate American College of Veterinary Dermatology, The University of Tennessee, College of Veterinary Medicine, Knoxville, TN 37996-4544, USA.
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28
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Sieber-Ruckstuhl NS, Boretti FS, Wenger M, Maser-Gluth C, Reusch CE. Cortisol, aldosterone, cortisol precursor, androgen and endogenous ACTH concentrations in dogs with pituitary-dependant hyperadrenocorticism treated with trilostane. Domest Anim Endocrinol 2006; 31:63-75. [PMID: 16233969 DOI: 10.1016/j.domaniend.2005.09.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2005] [Revised: 09/07/2005] [Accepted: 09/10/2005] [Indexed: 11/19/2022]
Abstract
Trilostane is thought to be a competitive inhibitor of the 3beta-hydroxysteroid dehydrogenase (3beta-HSD), an essential enzyme system for the synthesis of cortisol, aldosterone and androstenedione. Due to its reliable clinical efficacy, trilostane is increasingly used to treat dogs with pituitary-dependant hyperadrenocorticism (PDH). The objective of our study was to investigate the effect of trilostane on precursor concentrations located before (17alpha-OH-pregnenolone, dehydroepiandrostenedione) and after (17alpha-OH-progesterone, androstenedione, 11-deoxycortisol, 21-deoxycortisol) the proposed enzyme inhibition, on end products of steroid biosynthesis (cortisol and aldosterone) and on endogenous adrenocorticotrophic hormone (ACTH) concentrations in dogs with PDH. Hormones of the steroid biosynthesis pathway were evaluated in 15 dogs before and 1h after injection of synthetic ACTH prior to (t(0)), in weeks 1-2 (t(1)) and in weeks 3-7 (t(2)) of trilostane treatment. Endogenous ACTH concentrations were measured at the same time points before performing the ACTH stimulation test. During trilostane treatment baseline and post-stimulation cortisol concentrations decreased significantly. Baseline serum aldosterone levels showed a significant increase; post-stimulation values decreased. Baseline and post-stimulation 17alpha-OH-pregnenolone and dehydroepiandrostenedione concentrations increased significantly. 17alpha-OH-progesterone and androstenedione levels did not change. Post-stimulation 21-deoxycortisol concentrations decreased significantly, baseline 11-deoxycortisol concentrations increased significantly. Endogenous ACTH levels showed a significant increase. The significant increase in 17alpha-OH-pregnenolone and dehydroepiandrostenedione concentrations confirms an inhibitory effect of trilostane on the 3beta-HSD. Since 17alpha-OH-progesterone concentrations did not change, but cortisol concentrations markedly decreased, trilostane seems to influence additional enzymes of the hormone cascade, like the 11beta-hydroxylase and possibly the 11beta-hydroxysteroid dehydrogenase.
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Affiliation(s)
- N S Sieber-Ruckstuhl
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland.
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29
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Barker E, Campbell S, Tebb A, Neiger R, Herrtage M, Reid S, Ramsey I. A Comparison of the Survival Times of Dogs Treated with Mitotane or Trilostane for Pituitary-Dependent Hyperadrenocorticism. J Vet Intern Med 2005. [DOI: 10.1111/j.1939-1676.2005.tb02769.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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30
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Leone F, Cerundolo R, Vercelli A, Lloyd DH. The Use of Trilostane for the Treatment of Alopecia X in Alaskan Malamutes. J Am Anim Hosp Assoc 2005; 41:336-42. [PMID: 16141187 DOI: 10.5326/0410336] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Three Alaskan malamutes with hair loss and slightly elevated blood concentrations of 17-hydroxyprogesterone after stimulation with adrenocorticotropic hormone (ACTH) were treated with trilostane. Trilostane, an inhibitor of 3 β-hydroxysteroid dehydrogenase, was given twice daily at a dose of 3.0 to 3.6 mg/kg per day orally for 4 to 6 months. Routine ACTH stimulation tests were performed over 8 months to evaluate the degree of adrenal function suppression. Treatment with trilostane led to complete hair regrowth in all three dogs within 6 months. No adverse effects associated with trilostane were recognized.
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Affiliation(s)
- F Leone
- Clinica Veterinaria Adriatica, Senigallia, Senigallia, Italy
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31
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Neiger R, Witt AL, Noble A, German AJ. Trilostane Therapy for Treatment of Pituitary-Dependent Hyperadrenocorticism in 5 Cats. J Vet Intern Med 2004. [DOI: 10.1111/j.1939-1676.2004.tb00156.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Frank LA, Hnilica KA, Rohrbach BW, Oliver JW. Retrospective evaluation of sex hormones and steroid hormone intermediates in dogs with alopecia. Vet Dermatol 2003; 14:91-7. [PMID: 12662266 DOI: 10.1046/j.1365-3164.2003.00330.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to determine if there are specific steroid hormone aberrations associated with suspect endocrine alopecias in dogs in whom hypothyroidism and hyperadrenocorticism have been excluded. Steroid hormone panels submitted to the UTCVM endocrinology laboratory over a 7.5-year period (783 samples) from dogs with alopecia were reviewed. During this period, 276 dogs met the criteria for inclusion and were comprised of 54 different breeds. Approximately 73% of dogs had at least one baseline or post-ACTH stimulation steroid hormone intermediate greater than the normal range. The most frequent hormone elevation noted was for progesterone (57.6% of samples). When compared with normal dogs, oestradiol was significantly greater in Keeshond dogs and progesterone was significantly greater in Pomeranian and Siberian Husky dogs. Not all individual dogs had hormone abnormalities. Chow Chow, Samoyed and Malamute dogs had the greatest percentage of normal steroid hormone intermediates of the dogs in this study. Baseline cortisol concentrations were significantly correlated with progesterone, 17-hydroxyprogesterone (17-OHP) and androstenedione. Results of this study suggest that the pathomechanism of the alopecia, at least for some breeds, may not relate to steroid hormone intermediates and emphasizes the need for breed specific normals.
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Affiliation(s)
- Linda A Frank
- Department of Small Animal Clinical Sciences, University of Tennessee, Knoxville, TN 37996-4544, USA.
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Frank LA, Rohrbach BW, Bailey EM, West JR, Oliver JW. Steroid hormone concentration profiles in healthy intact and neutered dogs before and after cosyntropin administration. Domest Anim Endocrinol 2003; 24:43-57. [PMID: 12450624 DOI: 10.1016/s0739-7240(02)00204-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purpose of this study was to determine steroid hormone concentration profiles in healthy intact and neutered male and female dogs. Seventeen intact female dogs, 20 intact male dogs, 30 spayed female dogs, and 30 castrated male dogs were used in this study. Serum samples were collected before and 1h after cosyntropin administration, and serum concentrations were determined for cortisol, progesterone, 17-OH progesterone (17-OHP), dehydroepiandrosterone sulfate (DHEAS), androstenedione, testosterone, and estradiol. Intact male dogs had greater concentrations of DHEAS, androstenedione, and testosterone. Intact female dogs had greater concentrations of progesterone. There was no significant difference in estradiol concentration among the four groups. Intact male dogs had lower concentrations of cortisol post-stimulation. DHEAS and testosterone did not increase in response to ACTH in intact males, and estradiol concentrations did not increase in response to ACTH in any group. Results from this study will enhance interpretation of suspected adrenal and/or gonadal disorders of dogs. Because estradiol concentrations were similar in all groups of dogs, measuring estradiol may not be a useful diagnostic test. Cortisol concentrations for intact male dogs with hyperadrenocorticism may be lower than those of female or neutered dogs.
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Affiliation(s)
- L A Frank
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996-4544, USA.
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