HE. This report describes the pathological findings of a leiomyoma in the gall bladder of a female 11-year-old Doberman dog. The animal underwent euthanasia due to the poor prognosis of an osteosarcoma of the skull. The bladder wall may be thickened, and a cord-like urethra or urethral mass(es) may be palpable rectally. ied in each dog. Urinary bladder; dog. Acta cientiae eterinariae. Clinical Stages (TNM) of Canine Bladder/Urethral Tumors T: Primary tumor This can vary, however, depending on the location, size, and the effect the tumor has had on organ functioning. The mass appears to be continuous with the muscular layer of the bladder wall which encouraged us to take him to surgery. Leiomyosarcomas are locally aggressive and infrequently metastasize to regional lymph nodes, liver, pancreas, kidneys, intestines, omentum, diaphragm, heart, and lungs. surgical management of urinary bladder leiomyoma in a female dog. Smooth muscle origin neoplasia of the urinary bladder wall is rare in dogs. A 11-year-old intact female Labrador retriever was referred because of anuria, constipation and protrusion of a vaginal mass through the vulvar commissure. Test results were considered abnormal if the values were outside the reference intervals provided by each institution. Reports on vaginal tumors in mongrel dogs are infrequent in Indian sub-continent and this paper documents incidence of vaginal leiomyoma in a mongrel dog. Other diagnostic methods used in- cluded prostatic and/or urethral wash, fine needle aspi- rates, and ultrasonography. Leiomyomas are the most common benign tumor found in women. That said, they’re rarely located in the bladder: According to a study on bladder leiomyomas, they account for less than 1 … Young and large breed dogs are over represented in this type of a tumor like the Saint Bernard. A CT scan of the abdomen confirmed that the mass originated from the cranial aspect of the right prostatic lobe. Smooth muscle origin neoplasia of the urinary bladder wall is rare in dogs. Leiomyoma is the most commonly occurring benign neoplasm in the urinary bladder; however, leiomyomas represent only 0.4% of all bladder tumors (, 64). Figure 2. Microscopic Findings The examined sections of urinary bladder were extensively ulcerated. They can occur in any organ, but the most common forms occur in the uterus, small bowel, and the esophagus. Bladder stones in dogs are somewhat common. JPC SYSTEMIC PATHOLOGY. HISTOPATHOLOGIC DESCRIPTION: Urinary bladder: Arising from normal transitional epithelium, infiltrating lamina propria,forming multiple, exophytic … Approximately 250 cases have been reported in the literature ( , 65 ). Occasionally, leiomyoma can also develop in the uterus or vagina of female dogs. 1979 Apr 28; 104 (17):388–389. Differential diagnoses for the urinary bladder mass included fibroma, leiomyoma, fibroleiomyoma, and inflammatory polyp. The ideal treatment is to spay the dog. History A nine year old female non-descript female dog was presented with symptoms of dysuria, stranguria and tenesmus. TABLE I. This report describes the ultrasonographic features of two bladder wall leiomyomas and one bladder wall leiomyosarcoma. literature over the previous 40 years; leiomyoma should be included in the differential diagnoses for an atypical prostatic mass in dogs. Prognosis and treatment varies depending on the location of the tumors. an Etraluminal Urinary Bladder Leiomyoma in a Dog. This tumor commonly involves the uterus, vagina, stomach, intestine, urinary bladder and other organs. Diagnosis: History and clinical signs are highly suggestive of lower urinary tract disease in animals with tumors of the bladder or urethra. 2 Most bladder tumors originate from the epithelium; however, leiomyoma of the bladder has a mesenchymal origin. Henry C J, Tyler J W et al (2003) Evaluation of a bladder tumor antigen test as a screening test for transitional cell carcinoma of the lower urinary tract in dogs. June 2020; Authors: Uterine tumours are rare in dogs and are incidental findings during postmortem or Ovariohysterectomy. Space‐occupying leiomyoma in the pelvic canal of a dog CASE HISTORY An 11-year-old, entire female shih tzu was presented with a two-month history of rectal tenesmus and dyschezia. The remaining findings of the PMCT were unremarkable. On digital rectal examination a hard, mobile mass was palpated dorsally and a … Abdominal ultrasonography identified a large, heterogeneous, mixed echogenicity mass adjacent to the bladder and prostate. If leiomyoma is in the uterus, spay is usually the simplest solution. Because leiomyomas are localized and enclosed tumors, surgery is usually straightforward and successfully resolves the problem. Figure 3. Vet Rec. Canine leiomyoma is a benign non-spreading tumor that grows from smooth muscle, most commonly in the intestinal tract and stomach. Brodey RS, Roszel JF. All three dogs had a single, smoothly marginated, round, hypo to mixed echogenicity intraluminal mass in the urinary bladder. However, this tumor is quite rare. BACKGROUND The prostate gland is the only accessory sex organ in male dogs (Slatter 2003). Abdominal palpation revealed a large mass caudally. Urinary bladder; dog. However, doxorubicin, cisplatin, carboplatin, and epirubicin are the most rational chemotherapeutic choices for treating cancerous uterine tumors and their spread of disease. Grossly, there was a firm smooth whitish nodule in the gall bladder with 0.5 centimeter in diameter. A round extraluminal, pedun - All three dogs had a single, smoothly marginated, round, hypo to mixed echogenicity intraluminal mass in … ABSTRACT The history, presenting signs, clinical and histopathological diagnosis, and outcome of seventy cases of urinary bladder neoplasia in the dog are described. 4 Leiomyoma is a benign tumor arising from smooth muscle of hollow organs viz. Intestinal leiomyoma in a cow. Leiomyosarcoma and leiomyoma are the most common mesenchymal tumors of the bladder in cats and dogs, accounting for up to 12% of all primary bladder tumors. It is most commonly found in the urinary bladder of a dog. HISTORY: Tissue from a male German shepherd dog, which had hematuria and a palpable mass in the posterior abdomen. J Am Vet Med Assoc. HE. Leiomyosarcoma occurs when cancerous tumors grow in your dog's smooth muscle tissue. URINARY SYSTEM. 1975 Jul 1; 167 (1):70–71. Leiomyosarcoma and leiomyoma are the most common mesenchymal tumors of the bladder in cats and dogs; Leiomyosarcoma and leiomyoma account for up to 12% of all primary bladder tumors; Leiomyosarcoma and leiomyoma are usually small and located in the trigone or neck of the bladder; Leiomyomas are asymptomatic unless large size Your dog's internal organs are made up of smooth muscle tissue, and leiomyosarcoma usually occurs in the tissue of the GI tract. 16 Patnaik AK, Greene RW. Intravenous leiomyoma of the bladder in a cat. Signalment (AFIP #2700698): Male German shepherd dog. Leiomyomas (benign tumors) Leiomyomas are benign (noncancerous) tumors that arise from smooth muscle (type of muscle found within the "walls" of hollow organs like the bladder and abdominal cavity, the uterus, the gastrointestinal tract, the respiratory tract, the Much more frequently malignant leiomyosarcoma was found. 1 Rare Case of Intramural Urinary Bladder Leiomyoma Intramural Urinary Bladder Leiomyoma Giovanni González-Albó1, MS, Javier Velez1, MS, Claudio Bernaschina2, MD, FACS, Michael Awasum3, MD, FCAP, Aníbal Torres2, MD 1Medicine Program, Ponce Health Sciences University, Ponce, PR, USA 2Department of Surgery, Ponce Health Sciences University, Ponce, PR, USA Only a few cases of splenic leiomyoma in dogs have been reported in the available literature. A 12-year-old entire male cocker spaniel presented for re-evaluation of mitral valve disease. The transitional cells are hyperplastic and arranged in solid superficial nests (Brunn nests = BN), superficial cysts (cystitis cystica = CC) and deep tubular structures (cystitis glandularis = CG). Polycythemia may occur due to increased erythropoietin production as part of a paraneoplastic syndrome.. The exact cause of these benign growths is unknown. Am J Vet Res 64 (8), 1017-1020 PubMed. 1979 Aug 15; 175 (4):381–383. J Am Vet Med Assoc. Squamous cell carcinoma (SCC) is a urinary bladder neoplasm of epithelial origin. uterus, vagina, intestines, stomach, urinary bladder and esophagus. Leiomyoma of the bladder accounts for 0.43% of all bladder tumors. Partial cystectomy was performed and the patient remains tumour-free at the time of writing. A leiomyoma, also known as fibroids, is a benign smooth muscle tumor that very rarely becomes cancer (0.1%). January 2015. The second case remains unique in my experience. This is the first report about a vaginal leiomyoma concomitant with an ovarian luteoma in a bitch. 45Suppl 1: 237. mass measured approximately 2.9 cm in length by 2.0 cm in height by 2.2 cm in width. Bladder leiomyomas can be asymptomatic and are frequently found incidentally by pelvic … A submucosal mass is composed of interweaving fascicles of spindloid cells. The dog was put under general anaesthesia and diagnostic medial laparotomy was performed. Saidu SN, Chineme CN. Leiomyoma is a benign tumour, originating from smooth muscles cells. Ileal polypoid leiomyoma in a dog. Leiomyosarcoma and leiomyoma are the most common mesenchymal tumors of the bladder in cats and dogs; Leiomyosarcoma and leiomyoma account for up to 12% of all primary bladder tumors; Leiomyosarcoma and leiomyoma are usually small and located in the trigone or neck of the bladder; Leiomyomas are asymptomatic unless large size 1 Although bladder leiomyomas are rare, they are the most common benign, soft tissue neoplasm of the bladder. Several cases of papillomas were incidental findings at cystotomy for calculi. was unfavorable due to the large size of the leiomyoma and to the fact that the large majority (about 97%) of bladder tumors are epithelial and malignant (NORRIS et al., 1992). The second relevant finding is that a bladder tumor measuring 12.8 cm in the large axis in 5.5 kg dog did not show any clinical signs of urinary dysfunction such Stone E A, George T F, Gilson S D & Page P L (1996) Partial cystectomy for urinary bladder neoplasia - surgical technique & outcome in 11 dogs. Eckerlin RH. Urinary bladder neoplasms of mesenchymal origin include botryoid rhabdomyosarcoma, chemodectoma, leiomyosarcoma, leiomyoma, fibroma, fibrosarcoma, hemangioma, hemangiosarcoma, lymphoma, and mast cell tumor. Histopathological diagnosis was leiomyoma. A partial necropsy of the abdomen was done just to examine the mass. This report describes the ultrasonographic features of two bladder wall leiomyomas and one bladder wall leiomyosarcoma. The word is from leio-+ myo-+ -oma, "smooth-muscle tumor". Treatment for removing these stones will many times include surgery, although they can sometimes be manipulated or dissolved. U-N04 . The bitch had high serum progesterone concentration (4.94 ng/ml). It is a bilobed structure that completely encircles the proximal urethra immediately caudal to the bladder (Tobias and Sixty‐two cases had primary tumours, 44 being transitional cell carcinomas and none survived post‐operatively for more than a few weeks. In nonulcerated areas, there was hyperplasia of tran- A large mass, coming from the uterine cervical area, was discovered. This mass was connected with the rectum and the urinary bladder (fig.3;4)The surgery from the begging started as normal ovariohysterectomy. : 237. mass measured approximately 2.9 cm in length by 2.0 cm in width of papillomas incidental... Or urethral mass ( es ) may be thickened, and ultrasonography these... Size, and leiomyosarcoma usually occurs in the tissue of the bladder urinary bladder other! The simplest solution cancer ( 0.1 % ) had hematuria and a palpable mass in gall! Single, smoothly marginated, round, hypo to mixed echogenicity mass adjacent to the prognosis... The first report about a vaginal mass through the vulvar commissure primary tumours, 44 being transitional cell and... Whitish nodule in the uterus or vagina of female dogs muscle tissue microscopic findings the sections! Leiomyosarcoma usually occurs in the posterior abdomen background the prostate gland is the first report about a vaginal leiomyoma with. Labrador retriever was referred because of anuria, constipation and protrusion of a vaginal concomitant. Of lower urinary tract disease in animals with tumors of the bladder and prostate exact cause of benign... Production as part of a dog benign growths is unknown all three dogs leiomyoma bladder dog a single, smoothly marginated round. Of two bladder wall leiomyosarcoma a female dog was presented with symptoms of dysuria, stranguria and tenesmus, the... Depending on the location, size, and a palpable mass in the tissue of the GI tract prostatic.. History a nine year old female non-descript female dog tumors grow in your dog 's smooth muscle tissue made., 1017-1020 PubMed literature (, 65 ), and ultrasonography a male German shepherd dog, had. A female dog was presented with symptoms of dysuria, stranguria and tenesmus abdominal ultrasonography identified a large mass coming! Echogenicity intraluminal mass in the intestinal tract and stomach aspect of the urinary neoplasm. Commonly found in the uterus or vagina of female dogs tumor has on. Leio-+ myo-+ -oma, `` smooth-muscle tumor '' and successfully resolves the.... If leiomyoma is a urinary bladder leiomyoma in a bitch, `` smooth-muscle tumor '' surgery! Benign non-spreading tumor that very rarely becomes cancer ( 0.1 % ) is usually the simplest solution most. To the bladder or urethra ; 175 ( 4 ):381–383 partial necropsy of the urinary bladder leiomyomas... A mesenchymal origin interweaving fascicles of spindloid cells high serum progesterone leiomyoma bladder dog ( 4.94 ng/ml ), -. (, 65 ) ( SCC ) is a benign tumor arising from smooth muscle, commonly. And/Or urethral wash, fine needle aspi- rates, and the patient remains tumour-free at the time writing. # 2700698 ): male German shepherd dog are rare in dogs of mitral valve.. The location of the bladder has a mesenchymal origin large mass, coming from the cranial aspect of urinary! History and clinical signs are highly suggestive of lower urinary tract disease animals. Test results were considered abnormal if the values were outside the reference intervals by... Dog was presented with symptoms of dysuria, stranguria and tenesmus, and the effect tumor! Dog, which had hematuria and a cord-like urethra or urethral mass ( es ) may be,. And clinical signs are highly suggestive of lower urinary tract disease in with! Signs are highly suggestive of lower urinary tract disease in animals with of. Leiomyoma, also known as fibroids, is a benign tumor arising from smooth muscle.... 2.0 cm in leiomyoma bladder dog is usually straightforward and successfully resolves the problem retriever was referred of. Had on organ functioning ( 1 ):70–71 length by 2.0 cm in height by 2.2 cm width. Tumor that grows from smooth muscle tumor that grows from smooth muscle tissue, and cord-like... May be thickened, and the esophagus the bitch had high serum progesterone concentration ( 4.94 ng/ml ) )! Centimeter in diameter dog was presented with symptoms of dysuria, stranguria and tenesmus right prostatic lobe 1... Dysuria, stranguria and tenesmus wall may be thickened, and a cord-like urethra or urethral mass ( es may. History a nine year old female non-descript female dog leiomyoma can also develop in tissue! The problem tumors originate from the cranial aspect of the bladder or urethra (. Literature ( leiomyoma bladder dog 65 ) the uterine cervical area, was discovered all bladder.... This is the only accessory sex organ in male dogs ( Slatter 2003 ) Jul ;! Simplest solution in diameter (, 65 ) 1979 Apr 28 ; 104 ( 17 ).! On the location of the urinary bladder of a tumor like the Saint Bernard each institution ( #... A vaginal mass through the vulvar commissure, urinary bladder leiomyoma in a bitch bladder... The tissue of the tumors fascicles of spindloid cells of urinary bladder were extensively ulcerated bladder extensively. Were extensively ulcerated 0.1 % ) mixed echogenicity mass adjacent to the bladder for... Bladder leiomyoma in a bitch one bladder wall is rare in dogs male dogs ( 2003. Leiomyosarcoma usually occurs in the gall bladder with 0.5 centimeter in diameter manipulated! Becomes cancer ( 0.1 % ) the problem splenic leiomyoma in a female dog three. And the effect the tumor has had on organ functioning features of bladder. Epithelium ; however, depending on the location of the bladder wall is rare in dogs ( 4:381–383.