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1.
Bilateral segmental aplasia of the uterine horns with unilateral pyometra and uterine horn torsion were diagnosed in a Pomeranian bitch that presented with chronic abdominal distension and an acute onset of anorexia and lethargy. Because radiographic and ultrasonographic findings revealed the presence of markedly enlarged bilateral uterine horns filled with fluid in the caudal abdomen, a tentative diagnosis of either pyometra or hydrometra with uterine horn torsion was made. Exploratory laparotomy showed bilateral, segmentally distended uterine horns with unilateral uterine horn torsion. Ovariohysterectomy was performed, and bilateral segmental aplasia of the uterine horns with the development of unilateral uterine horn torsion was diagnosed histopathologically. To the authors' knowledge, this is the first report of uterine horn torsion in conjunction with segmental aplasia of the uterine horn in a bitch.  相似文献   

2.
Segmental aplasia of the uterine body was diagnosed in a 5-year-old, mixed breed bitch. Abdominal radiography and transabdominal ultrasonography revealed marked dilation of fluid-filled uterine horns with no evidence of a uterine body. Sex hormone assays did not detect the presence of estradiol-17 beta; however, progesterone (2 ng/ml) was found in the serum, indicating anestrus. On gross examination of the reproductive tract, the uterine body was absent, apparently never formed. In its place, a cord-like piece of tissue was identified as an aplastic/dysplastic remnant, connecting the cervix and right uterine horn. The tip of the cord-like piece branched into 5 string-like pieces of tissue, 1 of which was connected to the region dividing the left and right uterine horns. Both the uterine horns were dilated markedly revealing hydrometra. Histologically, uterine body remnant tissues from the endometrium, myometrium, and perimetrium were detected in proximal and distal parts of the uterine body. The string-like piece of tissue connecting the uterine body remnant and the uterine horn consisted of a round cluster of smooth muscle cells surrounding a central core of adipose tissue with blood vessels. It was concluded that the hydrometra observed in both uterine horns was induced by an obstruction resulting from segmental aplasia in the uterine body. This is the first known report of segmental aplasia in the uterine body of a bitch.  相似文献   

3.
A 1.5-year-old female Persian cat was presented for inappetence and azotemia. Ultrasonography and urography revealed multiple abnormalities involving the genitourinary tract, including agenesis of the right kidney and ureter. Gross examination of the abnormal uterus revealed segmental aplasia of right caudal uterine horn causing cranial distension with fluid, a normal left uterine horn, and both normal ovaries. Microscopically, endometrial glands of the right uterine horn were markedly decreased in number. The right uterine horn was hemorrhagic suggesting estrus. This is the first report of this combination of urinary and uterus abnormalities in the veterinary literature.  相似文献   

4.
Two Holstein heifers and a cow were diagnosed with White Heifer Disease by ultrasonography. Case 1 was a 14 month-old heifer with aplasia of both sides of the uterine horn. In case 2, a primiparous cow and case 3, an 18 month-old heifer, both showed aplasia of the right uterine horn. Case 2 became pregnant by artificial insemination at ipsilateral ovulatory follicle and corpus luteum in the left ovary, while case 3 became pregnant by embryo transfer at 7 days after oestrus with contralateral corpus luteum in the right ovary.  相似文献   

5.
A 9-month-old, Tennessee Walking Horse colt was examined for urinary incontinence. Cystoscopy revealed a single identifiable ureter that appeared abnormal, and sabulous urolithiasis. Only the left kidney, which appeared lobulated and hydronephrotic, could be located using ultrasound. Results of serum chemistries were consistent with renal failure. Necropsy revealed unilateral agenesis of the right kidney and ureter with severe left ureterolithiasis, bilateral cryptorchidism and segmental aplasia of the ductus deferens. Histopathological examination revealed cystitis and diffuse interstitial fibrosis of the left kidney. Congenital malformations should be included as differential diagnoses for urinary incontinence and urogenital disease. Ultrasonography and cystoscopy can be useful to diagnose suspected agenesis of the urinary system in adult horses.  相似文献   

6.
A heifer with congenital left uterine horn aplasia had completely normal reproductive cycles when ovulation occurred from the right ovary. Subsequent to ovulation from the left ovary, however, the corpus luteum persisted for months unless prostaglandin F2 alpha was administered. The reproductive tract was examined after slaughter. The left oviduct ended blindly, resulting in fluid-filled cysts. Except for aplasia of the left uterine horn, the reproductive tract appeared to be morphologically normal. This natural model confirms that the luteolytic signal in cattle is sent from the uterine horn to the ipsilateral ovary, but not to the contralateral ovary. Diagnosis of this abnormality required careful palpation per rectum. The normal luteolysis that occurred with exogenous prostaglandin F2 alpha treatment provided misleading information that the heifer was normal.  相似文献   

7.
A desexed female ferret was presented with bilateral alopecic changes. Clinical examination revealed generalized alopecia and abdominal distension. A polycystic mass was found behind the right kidney, and the whole abdomen was filled with a large turgid mass. Radiography and ultrasonography confirmed the presumptive diagnosis of a hydrometra. Hematology and serum biochemistry showed regenerative anemia with light azotemia. Laparotomy showed the presence of a neoplastic mass at the location of the right ovary, a massive enlargement of the uterus filled with a clear fluid, and a subcapsular cyst on the left kidney. After surgery, histopathologic examination of the tissues diagnosed a leiomyoma of the right ovary with hyperplasia of the uterine wall.  相似文献   

8.
The ovarian dynamics and uterine and ovarian blood flows of a 6-year-old (2 parturitions) Holstein Friesian cow with right uterine horn aplasia were observed during two estrous cycles. In one estrous cycle, a corpus luteum (CL) formed in the right ovary, but regression of the CL and subsequent ovulation were not observed. In the other estrous cycle, a CL formed in the left ovary and delayed regression of the CL and subsequent ovulation were observed. The blood velocity of the right uterine artery was lower than that of the left uterine artery throughout both estrous cycles when a CL formed in either the right and left ovary. The blood velocities of the right and left ovarian arteries were unaffected by right uterine horn aplasia and changed depending on the presence of a CL. These results indicated that the blood flow of the right uterine artery was very weak and that aplasia of one uterine horn affects the estrous cycle, especially CL regression.  相似文献   

9.
Segmental aplasia of the left uterine horn in a multiparous Holstein cow was diagnosed by palpation and ultrasonography. Treatment with prostaglandin was unsuccessful in eliminating the fluid from the distended uterine horn. Segmental aplasia should be included in the list of differential diagnoses for cows with nonresponsive uterine enlargement.  相似文献   

10.
A 4.5-year-old female domestic longhair cat with a history of intermittent abdominal distention following estrus and infertility was admitted for routine vaccinations. Radiographs revealed 2 large blunt-ended tubular structures overlapping each other in the abdomen. Segmental aplasia of the right uterine horn was diagnosed following exploratory laparotomy and ovariohysterectomy.  相似文献   

11.
Two American Paint Horses, a 3-year-old nulliparous mare and a 7-year-old primiparous mare, presented for recent infertility and a pre-breeding examination, respectively. Examination of the internal reproductive tract of both mares using transrectal palpation and ultrasonography revealed the presence of the cervix, uterine body, left uterine horn and bilateral ovaries. The right uterine horn could neither be palpated nor imaged. The clinical diagnosis of uterus unicornis in one mare was confirmed at necropsy, which revealed combined aplasia of the right uterine horn and oviduct.  相似文献   

12.
A 4-day-old alpaca cria presented for inappetence that responded to symptomatic treatment. The cria re-presented with acute signs of inappetence and azotaemia. The azotaemia persisted despite intravenous fluid therapy. There was no right kidney on ultrasound and there appeared to be perirenal oedema around the left kidney. A diagnosis of right renal agenesis and acute renal failure of the left kidney was made. The cria failed to improve and was euthanased. Necropsy examination confirmed right renal agenesis and agenesis of the right ureter and right renal artery. A section of left kidney submitted for histological examination revealed diffuse, acute, marked tubular degeneration and nephrosis. The cause of the renal failure in the left kidney was not determined.  相似文献   

13.
Chronic abdominal distension in two female cats 2½ and 13 years old respectively was due to bilateral hydrometra. In both cases the condition resulted from absence of an internal cervical os with consequent accumulation of normal uterine secretions. The most likely cause was a segmental failure in the development of the Müllerian duct system.  相似文献   

14.
A homologous malignant mixed Müllerian tumor of the uterus occurring in an 8-year-old Persian cat was described with regard to its clinical and pathologic features. A polypoid multinodular mass of the right uterine horn was shown by an ultrasound examination. Grossly, the right uterine horn was enlarged because of a vegetative and infiltrating tumor, grayish-white in color, that penetrated the uterine wall to the level of the perimetrium. Many metastatic nodules were found in abdominal and thoracic cavities. Histologically, the neoplasm had both carcinomatous and sarcomatous components and was diagnosed as an uterine malignant mixed Müllerian tumor. This is the fourth case reported in cats. The histologic features and proliferation rate of this tumor were similar to the corresponding human neoplasms, which occur mainly in postmenopausal women. The possible hormone dependence of the tumor is briefly discussed.  相似文献   

15.
Artificial insemination was carried out by injecting semen into the upper part of the left uterine horn in rabbits with a duplex uterus. Ovulation was then induced by administration of hCG. As a result, implanted fetuses were observed not only in the left uterine horn but also in the right uterine horn. However, when similar insemination was carried out after ligation of the right utero-tubal junction, fertilization did not occur in the right oviduct. From these finding, we conclude that some of the spermatozoa injected into the left uterine horn was discharged into the vagina, entered the right uterine cervical canal, and reached the right oviduct to fertilize the ova.  相似文献   

16.
A 5-year-old, sexually intact poodle bitch was presented with a 2-year history of inguinal mass. A tentative diagnosis of hydrometra/mucometra with inguinal herniation was made and ovariohysterectomy with hernia repair was performed. Both fluid-filled uterine horns, both broad ligaments, and the uterine body were observed to be herniated through the inguinal ring. On histopathology, marked edema and diffuse hemorrhage were diagnosed in the uterus.  相似文献   

17.
A 14-year-old quarter horse mare had a 2-year history of infertility and the presence of a mass in the right uterine horn. Prior to surgery, the mass was determined to be invasive by using ultrasonography and hysteroscopy. A partial ovariohysterectomy was performed. The mass was diagnosed histologically as a uterine leiomyoma.  相似文献   

18.
运用管道铸型技术以及扫描电镜技术对双峰驼肾动脉血管进行了系统观察.结果显示,双峰驼肾动脉在入肾门前约4～8 cm处分为背干和腹干,入肾后在肾窦内相继形成肾段动脉.左右两肾段动脉的分支分布各有特点,各段动脉分支延伸至肾的皮髓交界处,形成弓形动脉;弓形动脉是叶间动脉的延续,并不与肾表面相平行;肾血管球以及出、入球微动脉因分布区域的不同,形态结构也不尽一致.表明,双峰驼肾各段动脉分布的规律性强,段动脉分支之间没有吻合支存在;肾各部位的血管球随分布区域的不同,其形态结构也呈现一定的变化.  相似文献   

19.
A case of right renal agenesis in a beagle, of interest because of the age of the dog at the time of diagnosis, is described. Physical, haematological, biochemical and urinary examinations, including measurement of endogenous creatinine clearance, were performed to assess renal function. Survey radiography, excretory urography, ultrasonography, computed tomography and nuclear magnetic resonance examinations were also used to confirm the absence of a kidney. The effect of kidney agenesis on renal function, evaluated on the basis of endogenous creatinine clearance, is discussed together with the benefits of the various imaging techniques to enable in vivo detection of renal abnormalities.  相似文献   

20.
Pollakisuria in adult goats can be caused by diseases of the urinary tract and by distension of parts of the genital tract leading to irritation of the bladder. Hydrometra is the most common cause of uterine distension in goats and usually can be resolved by prostaglandin injections. But other pathologies of the uterus can generate a similar syndrome. A dwarf goat was presented at the clinic with a history of chronic pollakisuria and tenesm. An initial ultrasonographic examination of the abdomen led to the suspicion of hydrometra, but treatment with injections of prostaglandin were not successful. Blood samples revealed low progesterone and high oestrogen values. A laparotomy was performed and an enlarged uterus with 1.5 L of mucous content and cystic ovaries were found and partially removed. A single solid leiomyoma was diagnosed histologically in the uterine wall. Two months later the goat's condition had deteriorated and therefore she was euthanized. Necropsy and pathohistological examination revealed the presence of a metastasized adenocarcinoma of the uterus. In this case, the pollakisuria provoqued by distension of the uterus was not caused by hydrometra, but by neoplasia. The syndrome and the pathogenesis of the adenocarcinoma in consideration of the hormonal status of the patient is discussed.  相似文献   

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