Objective Uterine intravenous leiomyomatosiswas a rare type of uterus tumors.Because of the lack of knowledge about the ultrasonic patterns of this kind of disease,misdiagnosis frequently happens.Reviewing the cases and relevant researcheswas helpful to understand the disease and figure it out inultrasonic images.Methods Six cases of patients with uterine intravenous leiomyomatosis were reviewed which werehospitalized in Beijing Obstetrics and Gynecology Hospital during 2014 to 2016.All of the patients underwentultrasound examinations before surgery.The ultrasound findings,clinical presentations and pathological features of the 6 patients were evaluated.Results In 6 patients with uterine intravenous leiomyomatosis,3 cases were solid tumors,located in the cervix region and para uterine region,withirregular veinvascular inside;3 cases performance as multiple tumorlocated in dilated uterine vein,active tumor embolus were found in inferior vena cavain one of the 3 cases.Conclusions Uterine intravenous leiomyomatosisis found to be a solid mass located in the cervix region and para uterine region.The internal fissure of solid tumor is an important feature.Tumor extending to the iliac vein and inferior vena cava in some cases.Thusit is hard to be diagnosed before surgery by ultrasonography.Moreover,transvaginal ultrasound combined with inferior vena cava ultrasonography and echocardiography has a more obvious advantage in the diagnosis of the uterine intravenous leiomyomatosis.

Shengyang Yiweitang is one of the first 100 classical prescriptions published by the National Administration of Traditional Chinese Medicine. It originated from the Clarifying Doubts about Damage from Internal and External Causes by physician LI Dongyuan of Jin dynasty， and is composed of Astragali Radix， Ginseng Radix et Rhizoma， Glycyrrhizae Radix et Rhizoma， Atractylodis Macrocephalae Rhizoma， Poria， Pinelliae Rhizoma， Citri Reticulatae Pericarpium， Angelicae Pubescentis Radix， Saposhnikoviae Radix， Notopterygii Rhizoma et Radix， Bupleuri Radix， Paeoniae Radix Alba， Alismatis Rhizoma， and Coptidis Rhizoma. With the effects of replenishing Qi， promoting Yang， clearing heat and removing dampness， Shengyang Yiweitang is used to treat spleen-stomach weakness and dampness-heat accumulation syndrome. Using bibliometrics， the authors systematically sorted out the source，composition， dosage， preparation， efficacy， indications， principle of composition， origin and processing of drugs，and modern clinical application of the prescription， and explored its history and key information. Additionally， it was found that Shengyang Yiweitang was widely used in modern clinical practice and was suitable for multisystem diseases， of which digestive system （264） was the most common， accounting for 41.71%， followed by urogenital system （57， 9.00%） and nervous system （48， 7.58%）. Although the treatment scope was wide， the pathogenesis of the diseases in traditional Chinese medicine belongs to "spleen-stomach weakness"， which fully reflected Li's academic thought of "internal injury of spleen and stomach leads to various diseases". The key information of Shengyang Yiweitang was determined by summarizing the relevant ancient books and modern literature， so as to provide accurate reference for its rational clinical application and further research and development.