• 대한수의학회지
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• 제62권2호
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• pp.11.1-11.4
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• 2022

A captive female capybara (Hydrochoerus hydrochaeris) of unknown age discharged a bloody mass from the vaginal region. A histopathology examination revealed the mass to be a reproductive leiomyosarcoma, and an ovariohysterectomy was performed. The histopathology examination confirmed that the excised tissue was a uterine leiomyosarcoma. The purpose of this report is to describe clinical history and histopathological diagnosis of leiomyosarcoma in capybaras. This report is novel because it describes the first diagnosis of uterine leiomyosarcoma in a capybara. Since clinical data about capybaras are rare, this case report will help to diagnosis and treat reproductive diseases of this species.

• 대한수의학회지
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• 제60권3호
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• pp.179-182
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• 2020

A 16-year-old cat presented with a 2-week history of anorexia and lethargy. Radiography revealed a soft-tissue opacity, heart-shaped mass between the descending colon and urinary bladder. Ultrasonography showed a large uterine body with a heterogeneously hypoechoic, thickened wall and hypoechoic intraluminal fluid. Computed tomography revealed a large, fluid-filled uterine mass with contrast enhancement, without evidence of regional lymph node or pulmonary metastasis. Ovariohysterectomy was performed and leiomyosarcoma was confirmed by histology. No notable abnormalities were observed during the 1-year postoperative follow-up periods. This report describes the diagnostic imaging and treatment of a rare case of feline uterine leiomyosarcoma.

• 한국임상수의학회지
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• 제17권2호
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• pp.495-498
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• 2000

Leiomyosarcoma is defined as a malignant smooth muscle tumor or a tumor that arises from smooth muscle and it is found as firm. white and lobulated mass. Canine uterine Ieiomyosa- rcomas are rarely associated with clinical signs. We surveyed(one case which was treated at veter- inary medical leaching hospital of Seoul National University. Through this report we studied the meshed fur diagnosis of uterine leiomyosarcoma by symptom, hematological method and ultrahonog- raphy. To determine uterine leiomysarcoma is difficult due to similarity of clinical signs to pyometra. Especially symptoms could not be noticed even by dogs owners until dogs have an elevation of the number of white blood cells. We conclude ultrasonographic observation and experimental laparotomy are of great value to diagnose the uterine liomyosarcoma.

• 한국임상수의학회지
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• 제37권2호
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• pp.109-113
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• 2020

A 5-year-old female lion-head rabbit weighing 2 kg was brought to a local animal hospital with hematuria. Radiography showed a mass in the uterus, which was removed by ovariohysterectomy. Macroscopic examination showed several masses in both uterine horns. These masses, which invaded the deep uterine walls, were firm to the touch, and their cut surfaces were greyish-white in color. Histopathologically, these masses were nonencapsulated and were composed of spindle cells arranged in cellular, large interlacing bundles or streams. The tumor cells had elongate nuclei with prominent nucleoli, granular chromatin and eosinophilic cytoplasm. Moderate anisocytosis and anisokaryosis were observed. Severe and extensive inflammation and necrosis were present within the masses. Immunohistochemically, the neoplastic cells were positive for vimentin, desmin, and α-smooth muscle actin, but negative for cytokeratin. These uterine masses were diagnosed as leiomyosarcoma. To our knowledge, this is the first report of a uterine leiomyosarcoma in the rabbit in Korea.

• 한국동물위생학회지
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• 제47권3호
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• pp.173-178
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• 2024

In this case study, we present a rare occurrence of simultaneous primary malignant neoplasms arising from the mammary gland and uterus in conjunction with pyometra and inguinal hernia. The subject, a 16-year-old intact mixed-breed dog, exhibited tubulopapillary carcinoma of the mammary gland with grade II malignancy and uterine leiomyosarcoma. Treatment involved partial mastectomy for the mammary carcinoma and ovariohysterectomy for the uterine leiomyosarcoma. Moreover, the inguinal hernia was concurrently repaired during the tumorectomies. The patient demonstrated positive postoperative progress over a span of two years, emphasizing the effectiveness of surgical intervention in managing the coinciding pathologies in an elderly canine. This unique co-occurrence of primary malignant neoplasms originating from distinct organ systems presents valuable insights into diagnostic approaches, disease characteristics, and surgical interventions in the realm of clinical oncology.

• 한국수의병리학회:학술대회논문집
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• 한국수의병리학회 2000년도 추계학술대회 및 정기총회
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• pp.23-23
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• 2000

A case of leiomyosarcoma is reported in a 9-year-old female Jin Do. The dog has been suffered from 1 week history of abdominal distension, dyspnea, depression and anorexia. On routine physical examination, radiology and ultrasound, a large occupying mass was noted in the reptroperitoneum. Due to poor prognosis, the uterine mass removed by ovariohystrectomy and submitted to pathology department for diagnosis. Grossly, the mass was firm, tan and contained several areas that were necrotic and hemorrhagic. (omitted)

• Korean Journal of Radiology
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• 제20권1호
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• pp.18-33
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• 2019

In this study, we summarize the clinical role of magnetic resonance imaging (MRI) in the diagnosis of patients with malignant uterine neoplasms, including leiomyosarcoma, endometrial stromal sarcoma, adenosarcoma, uterine carcinosarcoma, and endometrial cancer, with emphasis on the challenges and disadvantages. MRI plays an essential role in patients with uterine malignancy, for the purpose of tumor detection, primary staging, and treatment planning. MRI has advanced in scope beyond the visualization of the many aspects of anatomical structures, including diffusion-weighted imaging, dynamic contrast enhancement-MRI, and magnetic resonance spectroscopy. Emerging technologies coupled with the use of artificial intelligence in MRI are expected to lead to progressive improvement in case management of malignant uterine neoplasms.

• Tuberculosis and Respiratory Diseases
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• 제53권2호
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• pp.190-195
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• 2002

저자들은 과거력상 자궁절제술을 시술받은 환자에서 우연히 발견된 다발성 폐결절을 경피적 폐생검술을 시행하여 폐를 침범한 '양성 전이성 폐 평활근종증' 1예를 경험하였기에 이를 보고하는 바이다.

• 대한영상의학회지
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• 제82권1호
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• pp.219-224
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• 2021

평활근육종은 평활근육세포에서 기원하는 연부조직 육종이다. 평활근육종은 자궁에 흔하게 발생하지만 후복막강, 복강 그리고 혈관조직에도 발생할 수 있다. 자궁 또는 혈관에서 기원하는 평활근육종이 심장에 전이된 증례는 많이 보고되었으나, 내장 외 연부조직에서 생긴 평활근육종은 매우 드물게 발생하며 심장으로의 전이는 더욱 드문 것으로 알려져 있다. 이에 좌측 측복부에서 우심실로 전이된 평활근육종의 심초음파 소견과 조영증강 컴퓨터단층촬영소견을 경험하여 보고하고자 한다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권5호
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• pp.1935-1941
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• 2012

Introduction: Uterine sarcomas are a group of heterogenous and rare malignancies of the female genital tract and there is a lack of consensus on prognostic factors and optimal treatment. Objective and Methodology: To perform a retrospective evaluation of clinicopathological characteristics, prognostic factors and treatment outcomes of 93 patients with uterine sarcomas who were diagnosed and treated at 4 different centers from November 2000 to October 2010. Results: Of the 93 patients, 58.0% had leiomyosarcomas, 26.9% malignant mixed Mullerian tumors, 9.7% endometrial stromal sarcomas, and 5.4% other histological types. According to the last International Federation of Gynecology and Obstetrics (FIGO) staging, 43.0% were stage I, 20.4% were stage II, 22.6% were stage III and 14.0 % were stage IV. Median relapse free survival (RFS) was 20 months (95% confidence interval (CI), 12.4-27.6 months), RFS after 1, 2, 5 years were 66.6%, 44.1%, 16.5% respectively. Median overall survival (OS) was 56 months (95% CI, 22.5-89.5 months), and OS after 1, 2, 5 years was 84.7%, 78%, 49.4% respectively. Multivariate analysis showed that age ${\geq}60$ years and high grade tumor were significantly associated with poor OS and RFS; patients administered adjuvant treatment with sequential chemotherapy and radiotherapy had longer RFS time. Among patients with leiomyosarcoma, in addition to age and grade, adjuvant treatment with sequential chemotherapy and radiotherapy after surgery had significant effects on OS. Conclusion: Uterine sarcomas have poor progrosis even at early stages. Prognostic factors affecting OS were found to be age and grade.