1
|
Crosby J, Hardas A, Lee K, Rutherford L. Uterus Masculinus with a Patent Urethral Communication Documented with Positive Contrast Computed Tomography. J Am Anim Hosp Assoc 2023; 59:145-151. [PMID: 37167251 DOI: 10.5326/jaaha-ms-7344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2022] [Indexed: 05/13/2023]
Abstract
A 9 mo old male Labrador retriever presented for investigation into persistent urinary incontinence. Abdominal ultrasound and retrograde urethrocystogram with computed tomography documented a uterus masculinus (UM), which was confirmed on histopathology after surgical removal. A connection between the UM and the urethra was present, documented by positive contrast retrograde urethrocystography and confirmed with surgery. Typically, in the literature, UM are blind ending, and there are only a few case reports that demonstrate an assumed connection. This case has demonstrated a patent connection between the UM and the urethra, which should be considered a differential diagnosis for persistent urinary incontinence and urinary tract infection in juvenile male dogs.
Collapse
Affiliation(s)
- Jilli Crosby
- From the Department of Clinical Sciences and Services, The Royal Veterinary College, Camden, London, United Kingdom (J.C., L.R.); Department of Pathobiology and Population Sciences (A.H.), Department of Veterinary Clinical Sciences, The Royal Veterinary College, Hawkshead, Hertfordshire, United Kingdom; and Veterinary Specialists Scotland, Livingston, United Kingdom (K.L.)
| | - Alexandros Hardas
- From the Department of Clinical Sciences and Services, The Royal Veterinary College, Camden, London, United Kingdom (J.C., L.R.); Department of Pathobiology and Population Sciences (A.H.), Department of Veterinary Clinical Sciences, The Royal Veterinary College, Hawkshead, Hertfordshire, United Kingdom; and Veterinary Specialists Scotland, Livingston, United Kingdom (K.L.)
| | - Karla Lee
- From the Department of Clinical Sciences and Services, The Royal Veterinary College, Camden, London, United Kingdom (J.C., L.R.); Department of Pathobiology and Population Sciences (A.H.), Department of Veterinary Clinical Sciences, The Royal Veterinary College, Hawkshead, Hertfordshire, United Kingdom; and Veterinary Specialists Scotland, Livingston, United Kingdom (K.L.)
| | - Lynda Rutherford
- From the Department of Clinical Sciences and Services, The Royal Veterinary College, Camden, London, United Kingdom (J.C., L.R.); Department of Pathobiology and Population Sciences (A.H.), Department of Veterinary Clinical Sciences, The Royal Veterinary College, Hawkshead, Hertfordshire, United Kingdom; and Veterinary Specialists Scotland, Livingston, United Kingdom (K.L.)
| |
Collapse
|
2
|
Clinical and Histological Findings of Male Uterus ( Uterus Masculinus) in Three Dogs (2014-2018). Animals (Basel) 2023; 13:ani13040710. [PMID: 36830500 PMCID: PMC9952054 DOI: 10.3390/ani13040710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/03/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023] Open
Abstract
Data from three cases of uterus masculinus were retrieved from 2014 to 2018. Two out of three cases presented clinical signs compatible with systemic infection, as observed in bitches with pyometra. Ultrasound examination revealed a tubular fluid-filled structure with a thin irregular wall located cranially to the prostate and in continuity with the cranial part of the gland. In two cases, two other tubular fluid-filled structures were visualized in the caudal part of the abdominal cavity, ventrally to the prostate gland and urinary bladder. After surgical removal of these, histological examination revealed the presence of a uterine structure morphologically similar to the female counterpart. Various types of epithelial cell lining were found, including simple columnar, simple stratified and squamous epithelium associated with glands in the underlying stroma. Immunohistochemistry to anti-Müllerian hormone (AMH) produced a positive result on glands, while multifocal expression was found in the lining epithelium. AMH seems involved in the pathogenesis of uterus masculinus, but its role is not fully understood. Thorough clinical and ultrasonographical examinations, followed by a histological confirmation, are necessary to properly diagnose uterus masculinus in dogs.
Collapse
|
3
|
Fromme L, Yogui DR, Alves MH, Desbiez AL, Langeheine M, Quagliatto A, Siebert U, Brehm R. Morphology of the genital organs of male and female giant anteaters ( Myrmecophaga tridactyla). PeerJ 2021; 9:e11945. [PMID: 34447632 PMCID: PMC8364315 DOI: 10.7717/peerj.11945] [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: 04/26/2021] [Accepted: 07/20/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The giant anteater belongs to the supraorder Xenarthra which occupies a systematically isolated position among placental mammals. The species is categorized as Vulnerable by the International Union for Conservation of Nature, and understanding its reproductive characteristics is critical for future conservation efforts. METHODS Gross and microscopic anatomy of the genital organs of 23 male and 21 female adult and young roadkill giant anteaters in Brazil were studied. RESULTS Male giant anteaters presented a short conical penis, intraabdominal testes, and prostate, vesicular and bulbourethral glands. A tubular remnant of the partially fused Müllerian ducts extended from the seminal colliculus through the prostate gland, continued cranially in the genital fold, bifurcated, and attached with one elongation each to the left and right epididymal corpus. The structure presented a total length of up to 10 cm and contained a yellowish liquid in its lumen. Histologically, the caudal section of this structure resembled the female vagina, the middle portion corresponded to the uterus, and the extensions showed characteristics of uterine tubes. In adult female giant anteaters, ovoid ovaries with occasional seminiferous cord-like structures were observed. The animals possessed a simple uterus, which was directly continuous with the vaginal canal. The caudal portion of the vagina had two lumina, separated by a longitudinal septum and opening into two apertures into the vaginal vestibule, cranial to the urethral opening. In the urethral and the lateral vestibular wall, glandular structures with characteristics of male prostate and bulbourethral glands, respectively, were found. The vestibule opened through a vertical vulvar cleft to the exterior. A pair of well-differentiated Wolffian ducts with a central lumen originated ventrally at the vaginal opening into the vestibule and passed in a cranial direction through the ventral vaginal and uterine wall. Each duct extended highly coiled along the ipsilateral uterine tube until the lateral pole of the ovaries where it merged with the rete ovarii. DISCUSSION The reproductive morphology of giant anteaters reveals characteristics shared with other Xenarthrans: intraabdominal testes, a simple uterus, and a double caudal vagina. The persistence of well-differentiated genital ducts of the opposite sex in both males and females, however, singles them out among other species. These structures are the results of an aberration during fetal sexual differentiation and possess secretory functions. The possibility of a pathological degeneration of these organs should be considered in reproductive medicine of the species. CONCLUSION Knowledge of the unique reproductive characteristics of the giant anteater is essential for future reproductive management of the species. Additionally, further research on the peculiarities of the persisting genital duct structures might help to understand sexual differentiation in placental mammals in general.
Collapse
Affiliation(s)
- Lilja Fromme
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Hannover, Germany
- Institute for Anatomy, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Débora R. Yogui
- Project Anteaters and Highways, Instituto de Conservação de Animais Silvestres (ICAS), Campo Grande, Brazil
- Nashville Zoo, Nashville, TN, United States of America
| | - Mario Henrique Alves
- Project Anteaters and Highways, Instituto de Conservação de Animais Silvestres (ICAS), Campo Grande, Brazil
- Fundación Zoológica de Cali, Valle del Cauca, Colombia
| | - Arnaud L.J. Desbiez
- Project Anteaters and Highways, Instituto de Conservação de Animais Silvestres (ICAS), Campo Grande, Brazil
- Royal Zoological Society of Scotland (RZSS), Edinburgh, United Kingdom
- Instituto de Pesquisas Ecológicas (IPÊ), São Paulo, Brazil
| | - Marion Langeheine
- Institute for Anatomy, University of Veterinary Medicine Hannover, Hannover, Germany
| | - André Quagliatto
- Laboratório de Ensino e Pesquisa em Animais Silvestres (LAPAS), Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Ursula Siebert
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ralph Brehm
- Institute for Anatomy, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
4
|
Vignoli M, De Amicis I, Tamburro R, Quaglione G, Salviato N, Collivignarelli F, Terragni R, Pastrolin S, Marruchella G. A Case of Adenocarcinoma of Uterus Masculinus in a Pomeranian Dog. Front Vet Sci 2020; 7:337. [PMID: 32613012 PMCID: PMC7309598 DOI: 10.3389/fvets.2020.00337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/14/2020] [Indexed: 11/13/2022] Open
Abstract
Introduction: Persistent Müllerian duct syndrome (PMDS), or uterus masculinus, is a rare autosomal recessive form of male pseudohermaphroditism due to the failure of paracrine anti-Müllerian hormone (AMH) secretion by Sertoli cells or failure of the Müllerian ducts to respond to AMH secretion. The malignant degeneration of persistent Müllerian remnants is rare. In human medicine, few related reports exist. In veterinary medicine, this is the first report describing adenocarcinoma of the uterus masculinus involving the prostate in a dog. Clinical history: An 11-year-old, male, neutered Pomeranian dog was referred for computed tomography due to the suspicion of prostatic carcinoma based on ultrasound and cytological examinations. The computed tomography findings were consistent with a uterus masculinus mass with possible prostatic infiltration. Uterus masculinus removal and total prostatectomy were performed; termino-terminal urethral anastomosis was carried out. Dehiscence of the anastomosis was observed 3 days after surgery. The owner declined any further procedures, and the dog was euthanized 5 days after surgery. Histopathological evaluation revealed adenocarcinoma of the uterus masculinus. Conclusion: Adenocarcinoma of the uterus masculinus may occur, suggesting that patients with PMDS should be evaluated for malignant changes of Müllerian remnants.
Collapse
Affiliation(s)
- Massimo Vignoli
- Faculty of Veterinary Medicine, University of Teramo, Teramo, Italy
| | | | - Roberto Tamburro
- Faculty of Veterinary Medicine, University of Teramo, Teramo, Italy
| | - Gina Quaglione
- Human Pathology Unit, "Giuseppe Mazzini" Hospital, Piazza Italia, Teramo, Italy
| | | | | | | | | | | |
Collapse
|
5
|
Mantziaras G. Imaging of the male reproductive tract: Not so easy as it looks like. Theriogenology 2020; 150:490-497. [PMID: 32241560 DOI: 10.1016/j.theriogenology.2020.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/08/2020] [Indexed: 12/19/2022]
Abstract
Diagnostic imaging is one of the most important tools in the breeding soundness evaluation of dogs and cats with reproduction problems. In recent years several imaging techniques have been developed, trying to aid the diagnosis and to differentiate between abnormal findings. This review presents the current knowledge on the imaging of normal and abnormal testes, spermatic cord, excurrent duct system, scrotum, accessory sex glands, penis and muscles for protrusion, erection and ejaculation of the dog and of cat. It also highlights the weak points and disadvantages of each imaging technique.
Collapse
Affiliation(s)
- George Mantziaras
- EchoVet Small Animal Clinic, Kifissias Avenue 22, Marousi, Athens, 15125, Greece.
| |
Collapse
|
6
|
Khan FA, Gartley CJ, Khanam A. Canine cryptorchidism: An update. Reprod Domest Anim 2018; 53:1263-1270. [PMID: 29956390 DOI: 10.1111/rda.13231] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/28/2018] [Indexed: 12/20/2022]
Abstract
This review article is aimed at providing an update on canine cryptorchidism based on the research studies published in this area over the last 26 years. Although a majority of these research studies were directed at investigating the genetic and molecular basis of cryptorchidism, the mechanisms underlying this problem in dogs are still not clear. Future studies using advanced genomic and molecular approaches and including a larger number of dogs of multiple breeds are required to further our understanding of canine cryptorchidism. Diagnosis and treatment of cryptorchidism in dogs have not received much attention. Research advancements include investigation of ultrasonography and anti-Müllerian hormone assay as potential diagnostic methods. Advancements in treatment include the use of laparoscopic-assisted cryptorchidectomy. Based on the available literature, this method appears to be the best for removal of abdominal cryptorchid testes from dogs. However, future studies that compare laparoscopic-assisted cryptorchidectomy with the traditional approaches are required for a more conclusive determination of the best method for cryptorchidectomy in dogs.
Collapse
Affiliation(s)
- Firdous A Khan
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.,Department of Large Animal Medicine and Surgery, School of Veterinary Medicine, St. George's University, True Blue, Grenada
| | - Cathy J Gartley
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Afroza Khanam
- Department of Large Animal Medicine and Surgery, School of Veterinary Medicine, St. George's University, True Blue, Grenada
| |
Collapse
|
7
|
Sertoli Cell Tumour and Uterine Leiomyoma in Miniature Schnauzer Dogs with Persistent Müllerian Duct Syndrome Caused by Mutation in the AMHR2 Gene. J Comp Pathol 2018; 161:20-24. [DOI: 10.1016/j.jcpa.2018.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/28/2018] [Accepted: 04/19/2018] [Indexed: 11/22/2022]
|
8
|
Kim YJ, Kwon HJ, Byun HS, Yeom D, Choi JH, Kim JH, Shim H. Surveyor assay to diagnose persistent Müllerian duct syndrome in Miniature Schnauzers. J Vet Sci 2017; 18:547-549. [PMID: 27515263 PMCID: PMC5746449 DOI: 10.4142/jvs.2017.18.4.547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 05/03/2017] [Accepted: 07/21/2016] [Indexed: 11/20/2022] Open
Abstract
Persistent Müllerian duct syndrome (PMDS) is a pseudohermaphroditism in males characterized by the presence of Müllerian duct derivatives. As PMDS dogs often lack clinical symptoms, a molecular diagnosis is essential to identify the syndrome in these animals. In this study, a new molecular method using DNA mismatch-specific Surveyor nuclease was developed. The Surveyor nuclease assay identified the AMHR2 mutation that produced PMDS in a Miniature Schnauzer as accurately as that obtained by using the conventional method based on restriction digestion. As an alternative to the current molecular diagnostic method, the new method may result in increased accuracy when detecting PMDS.
Collapse
Affiliation(s)
- Young June Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
| | | | | | | | | | - Joong-Hyun Kim
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan 31116, Korea
| | - Hosup Shim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea.,Institute of Tissue Regeneration Engineering, Dankook University, Cheonan 31116, Korea.,Department of Physiology, Dankook University School of Medicine, Cheonan 31116, Korea
| |
Collapse
|
9
|
Smit MM, Ekenstedt KJ, Minor KM, Lim CK, Leegwater P, Furrow E. Prevalence of the AMHR2 mutation in Miniature Schnauzers and genetic investigation of a Belgian Malinois with persistent Müllerian duct syndrome. Reprod Domest Anim 2017; 53:371-376. [PMID: 29194807 DOI: 10.1111/rda.13116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/26/2017] [Indexed: 11/30/2022]
Abstract
Persistent Müllerian duct syndrome (PMDS) is a sex-limited disorder in which males develop portions of the female reproductive tract. Important consequences of PMDS are cryptorchidism and its sequelae of infertility and increased risk of testicular cancer. Anti-Müllerian hormone (AMH) and its receptor (AMHR2) induce the regression of the Müllerian ducts in male embryos. In Miniature Schnauzer dogs, the genetic basis has been identified as an autosomal recessive nonsense mutation in AMHR2, but the allele frequency of the mutation is unknown. Thus, the primary objective of this study was to estimate the prevalence of the AMHR2 mutation in North American Miniature Schnauzers, in order to ascertain the value of genetic testing in this breed. An additional objective was to determine whether mutations in AMH or AMHR2 were responsible for PMDS in a Belgian Malinois; this would aid development of a genetic test for the Belgian Malinois breed. Genomic DNA from 216 Miniature Schnauzers (including one known PMDS case) was genotyped for the AMHR2 mutation, and DNA from a single PMDS-affected Belgian Malinois was sequenced for all coding exons of AMH and AMHR2. The Miniature Schnauzer cohort had an AMHR2 mutation allele frequency of 0.16 and a carrier genotypic frequency of 0.27. The genetic basis for PMDS in the Belgian Malinois was not determined, as no coding or splicing mutations were identified in either AMH or AMHR2. These findings support a benefit to AMHR2 mutation testing Miniature Schnauzers used for breeding or with cryptorchidism.
Collapse
Affiliation(s)
- M M Smit
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - K J Ekenstedt
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA.,Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - K M Minor
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA
| | - C K Lim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Paj Leegwater
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - E Furrow
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA
| |
Collapse
|
10
|
Park EJ, Lee SH, Jo YK, Hahn SE, Go DM, Lee SH, Lee BC, Jang G. Coincidence of Persistent Müllerian duct syndrome and testicular tumors in dogs. BMC Vet Res 2017; 13:156. [PMID: 28576146 PMCID: PMC5455205 DOI: 10.1186/s12917-017-1068-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 05/23/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Persistent Müllerian duct syndrome (PMDS), a rare form of male pseudohermaphroditism in dogs, is an abnormal sexual phenotype in males that is characterized by the existence of a hypoplastic oviduct, uterus, and cranial part of the vagina. Dogs suffering from PMDS are often accompanied by cryptorchidism. To date, it has been mainly found in the Miniature Schnauzer breed. CASE PRESENTATION In this report, two cases of PMDS with a malignant testicular tumor originating from cryptorchidism in breeds other than the Miniature Schnauzer breed are described. The patients were a seven-year-old male Maltese dog and a 17-year-old male mixed-breed dog weighing 3.8 kg. They also exhibited an enlarged prostate with or without abscess and an elevated serum estradiol level and were surgically treated to remove the testicular tumor and Müllerian duct derivatives. CONCLUSIONS It is recommended that PMDS should be differentially diagnosed by ultrasonography and that orchiectomy be performed at an early age in patients suspected to have cryptorchidism to prevent the ectopic testes from becoming tumorous.
Collapse
Affiliation(s)
- Eun Jung Park
- Laboratory of Theriogenology & Biotechnology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826, Republic of Korea.,Veterinary Teaching Hospital, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seok-Hee Lee
- Laboratory of Theriogenology & Biotechnology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826, Republic of Korea.,Veterinary Teaching Hospital, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young-Kwang Jo
- Laboratory of Theriogenology & Biotechnology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826, Republic of Korea.,Veterinary Teaching Hospital, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang-Eun Hahn
- Laboratory of Theriogenology & Biotechnology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826, Republic of Korea.,Veterinary Teaching Hospital, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Do-Min Go
- Veterinary Pathology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Su-Hyung Lee
- Veterinary Pathology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Byeong-Chun Lee
- Laboratory of Theriogenology & Biotechnology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826, Republic of Korea.,Veterinary Teaching Hospital, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Goo Jang
- Laboratory of Theriogenology & Biotechnology, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826, Republic of Korea. .,Veterinary Teaching Hospital, College of Veterinary Medicine and the Research Institute of Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea. .,Emergence Center for Food-Medicine Personalized Therapy System, Advanced Institutes of Convergence Technology, Seoul National University, Gyeonggi-do, 443-270, Republic of Korea.
| |
Collapse
|
11
|
Histopathological pattern of gonads in cases of sex abnormalities in dogs: An attempt of morphological evaluation involving potential for neoplasia. Pathol Res Pract 2015; 211:772-5. [DOI: 10.1016/j.prp.2015.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 07/09/2015] [Accepted: 07/10/2015] [Indexed: 11/22/2022]
|
12
|
Monteagudo LV, Tejedor MT, Uixerá A, Mitjana O, Falceto MV, Bonastre C. Inherited pathology and pet trading. Vet Rec 2015; 176:315-6. [PMID: 25792683 DOI: 10.1136/vr.h1498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Luis V Monteagudo
- Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013-Zaragoza, Spain
| | - M Teresa Tejedor
- Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013-Zaragoza, Spain
| | - Alicia Uixerá
- Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013-Zaragoza, Spain
| | - Olga Mitjana
- Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013-Zaragoza, Spain
| | - M Victoria Falceto
- Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013-Zaragoza, Spain
| | - Cristina Bonastre
- Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013-Zaragoza, Spain
| |
Collapse
|
13
|
|
14
|
Abstract
The molecular steps in normal sexual development were largely discovered by studying patients and animal models with disorders of sexual development (DSD). Although several types of DSD have been reported in the cat and dog, which are often strikingly similar to human DSD, these have been infrequently utilized to contribute to our knowledge of mammalian sexual development. Canine and feline cases of DSD with sufficient evidence to be considered as potential models are summarized in this report. The consensus DSD terminology, and reference to previous terminology, is used to foster adoption of a common nomenclature that will facilitate communication and collaboration between veterinarians, physicians, and researchers. To efficiently utilize these unique resources as molecular tools continue to improve, it will be helpful to deposit samples from valuable cases into repositories where they are available to contribute to our understanding of sexual development, and thus improve human and animal health.
Collapse
Affiliation(s)
- V N Meyers-Wallen
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
| |
Collapse
|
15
|
Lee KJ, Shimizu J, Kishimoto M, Kadohira M, Iwasaki T, Miyake YI, Yamada K. Computed tomography of the prostate gland in apparently healthy entire dogs. J Small Anim Pract 2011; 52:146-51. [DOI: 10.1111/j.1748-5827.2011.01041.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
16
|
Breshears MA, Peters JL. Ambiguous genitalia in a fertile, unilaterally cryptorchid male miniature schnauzer dog. Vet Pathol 2011; 48:1038-40. [PMID: 21248100 DOI: 10.1177/0300985810396104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A 7-year-old male miniature schnauzer dog with unilateral cryptorchidism was presented for elective orchiectomy. Surgery to remove the cryptorchid testis revealed a fully formed uterus with horns attached to both testis and the body and cervix terminating at the prostate gland. The gross and microscopic diagnosis for the genital tract was persistent Müllerian duct syndrome with unilateral cryptorchidism. Additional associated lesions included cystic endometrial hyperplasia and a solitary, intratubular seminoma within the undescended testis. Persistent Müllerian duct syndrome is rare among domestic animals but is more common in miniature schnauzer dogs because of inheritance as an autosomal recessive trait.
Collapse
Affiliation(s)
- M A Breshears
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
| | | |
Collapse
|
17
|
Pujar S, Meyers-Wallen VN. A molecular diagnostic test for persistent Müllerian duct syndrome in miniature schnauzer dogs. Sex Dev 2009; 3:326-8. [PMID: 20051676 DOI: 10.1159/000273264] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 10/05/2009] [Indexed: 11/19/2022] Open
Abstract
In persistent Müllerian duct syndrome (PMDS), Müllerian ducts fail to regress in males during sexual differentiation. In the canine miniature schnauzer model, PMDS is caused by a C to T transition in exon 3 of the Müllerian inhibiting substance type II receptor (MISRII), which introduces a DdeI restriction site. Here we report a molecular diagnostic test for PMDS in the miniature schnauzer to identify affected dogs and carriers. As our test results suggest that the mutation is identical by descent in affected dogs of this breed, the test could be used to eliminate this mutation from the miniature schnauzer breed worldwide.
Collapse
Affiliation(s)
- S Pujar
- Baker Institute for Animal Health, Cornell University, College of Veterinary Medicine, Ithaca, N.Y., USA
| | | |
Collapse
|