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Uterine Leiomyomas

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https://www.readbyqxmd.com/read/28446940/a-case-of-disseminated-peritoneal-leiomyomatosis-after-two-laparoscopic-procedures-due-to-uterine-fibroids
#1
Michał Ciebiera, Aneta Słabuszewska-Jóźwiak, Kornelia Zaręba, Grzegorz Jakiel
Disseminated peritoneal leiomyomatosis (DPL) is a rare disorder characterized by the presence of multifocal nodules and tumors composed of proliferating smooth muscle tissue, spread throughout the peritoneum. Estrogens and progesterone are considered to be the main factors initiating the formation of disseminated leiomyomatosis. Disseminated peritoneal leiomyomatosis is often asymptomatic, and acyclic vaginal bleeding or pain in the lower abdomen is associated with leiomyomatous rebuilt uterus corpus. Disseminated peritoneal leiomyomatosis can have other ambiguous presentation...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28445268/the-use-of-mifepristone-in-abortion-associated-with-an-increased-risk-of-uterine-leiomyomas
#2
Qi Shen, Li Shu, Hui Luo, Xiaoli Hu, Xueqiong Zhu
To investigate the association between widespread use of mifepristone in abortions and risk of uterine leiomyomas.We conducted a case-control study of 305 patients with uterine leiomyomas between January 2011 and July 2012; 311 women with ordinary vaginitis were selected as controls during the same period. Data were collected by questionnaires (including past history, life history, menstruation history, reproductive history, abortion history, the use of mifepristone, and uterine leiomyomas risk factors) and calculated by univariate and multivariate conditional logistic regression analyses; odds ratios and its 95% confidence interval were calculated to estimate the risk for uterine leiomyomas...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28438190/very-small-embryonic-like-stem-cells-vsels-in-adult-mouse-uterine-perimetrium-and-myometrium
#3
Deepa Bhartiya, Kreema James
We have earlier reported the presence of very small embryonic-like stem cells (VSELs) in adult mouse uterus along with slightly bigger progenitors termed endometrial stem cells (EnSCs) and their regulation by ovarian hormones thus demonstrating a crucial role played by them during proliferation, differentiation and remodeling of the endometrium. Present study is a brief communication wherein we have examined the effect of higher dose of estrogen (E, 2 μg/day), progesterone (P, 1 mg/day) and follicle stimulating hormone (FSH, 5 IU/day for 5 days) specifically on the myometrium and perimetrium surrounding the endometrium in bilaterally ovariectomized mice...
April 24, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28432313/multiple-clinical-characteristics-separate-med12-mutation-positive-and-negative-uterine-leiomyomas
#4
Hanna-Riikka Heinonen, Annukka Pasanen, Oskari Heikinheimo, Tomas Tanskanen, Kimmo Palin, Jaana Tolvanen, Pia Vahteristo, Jari Sjöberg, Esa Pitkänen, Ralf Bützow, Netta Mäkinen, Lauri A Aaltonen
Up to 86% of uterine leiomyomas harbour somatic mutations in mediator complex subunit 12 (MED12). These mutations have been associated with conventional histology, smaller tumour size, and larger number of tumours within the uterus. Prior studies, with limited sample sizes, have failed to detect associations between other clinical features and MED12 mutations. Here, we prospectively collected 763 uterine leiomyomas and the corresponding normal myometrial tissue from 244 hysterectomy patients, recorded tumour characteristics, collected clinical data from medical records, and screened the tissue samples for MED12 mutations to assess potential associations between clinical variables and mutation status...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429638/an-unusual-presentation-of-a-cervical-paraspinal-leiomyoma-in-an-adolescent-female
#5
Jeffrey A Swarz, Arayamparambil C Anilkumar, Douglas C Miller, N Scott Litofsky, Tomoko Tanaka
Objective We describe an apparently unique case of an extra-uterine leiomyoma in the cervical paraspinus including its evaluation and management. Methods A 14-year-old girl was referred to the neurology clinic for an abnormal head CT following a concussion. MRI revealed a homogenously enhancing left cervical paraspinal mass. The patient underwent complete resection and subsequent genetic testing and counseling were obtained to determine the presence of Li-Fraumeni Syndrome (LFS) or Hereditary Leiomyomatosis and Renal Cell Cancer (HLRCC) mutations...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28427752/spontaneously-arising-tumours-and-tumour-like-lesions-of-the-cervix-and-uterus-in-83-pet-guinea-pigs-cavia-porcellus
#6
C Laik-Schandelmaier, R Klopfleisch, S Schöniger, G Weiffenbach, M Staudacher, H Aupperle
Tumours and tumour-like lesions are rare findings in the genital system of guinea pigs. The aim of the present study was to characterize nodular lesions in the cervix and uterus of guinea pigs submitted for histopathological diagnosis. Samples from 83 pet animals were investigated. Cases included 64 surgically excised masses including complete uteri (n = 37), parts from uteri containing masses (n = 8), complete masses (n = 12) or samples from masses (n = 7) and 19 complete necropsy examinations. In 55 of the cases, only solitary changes were observed; in 28 cases two or more lesions were diagnosed...
April 17, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28427122/-application-on-the-quantitative-perfusion-parameters-of-dynamic-contrast-enhanced-mri-in-the-pathological-subtype-of-uterine-leiomyoma
#7
J Zheng, Z H Zhao, J F Yang, L Zhao, L M Yang, H J Hu
Objective: To analyze the value of the quantitative perfusion parameters of dynamic contrast-enhanced MRI(DCE-MRI) in the pathological subtype of uterine leiomyoma. Methods: A total of 35 cases of uterine leiomyoma confirmed by surgery and pathology were retrospectively analyzed in Shaoxing People's Hospital from October 2015 to May 2016.All cases underwent DCE-MRI. Quantitative perfusion parameters were prospectively measured and analyzed, including transfer constant (K(trans)) , efflux rate constant (K(ep)), extravascular extracellular space volume ratio (V(e)), blood plasma volume ratio (V(p)), permeability surface area product (PS) and plasma flow (F(p)) , using signal-input two-compartment tracer kinetic models (Extended Tofts model and Exchange model) in 35 leiomyoma cases...
April 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28426767/benign-metastasizing-leiomyoma-a-review-of-current-literature-in-respect-to-the-time-and-type-of-previous-gynecological-surgery
#8
Edyta Barnaś, Mariusz Książek, Renata Raś, Andrzej Skręt, Joanna Skręt-Magierło, Ewa Dmoch-Gajzlerska
INTRODUCTION: Benign metastasizing leiomyoma (BML) is a rare disorder that affects women with a history of uterine leiomyoma, which is found to metastasise within extrauterine sites. The aetiology of BML remains unexplained. Because BML is rare, and most publications contain descriptions of single cases, no statistically determined time relations were found between the primary and secondary surgeries, which may have aetiological implications. OBJECTIVES: To determine age before BML surgery, age during diagnosis of BML, type of prior surgery, and location of metastasis based on the literature...
2017: PloS One
https://www.readbyqxmd.com/read/28413557/c2-primary-leiomyoma-in-an-immunocompetent-woman-a-case-report-and-review-of-literature
#9
Mohana Rao Patibandla, Madhukar T Nayak, A K Purohit, Megha Uppin, Sundaram Challa, Gokul Chowdary Addagada, Manisha Nukavarapu
Clinical case report and review of the literature. This is the first case of primary leiomyoma in an immunocompetent woman without previous history of uterine leiomyoma being reported in the literature to the best of our knowledge. Leiomyoma, a type of smooth muscle cell tumor, involving the vertebra is extremely rare. There were very few primary leiomyoma in patients with AIDS or in the immune-suppressed patients. This 48-year-old female came with H/o neck pain, weakness and bladder retention. On examination, tone increased in all four limbs, power on the right side of the limbs 4/5, power on the left upper limb 0/5, lower limb 3/5, left plantar was up going, decreased sensation over the left second cervical vertebra (C2) dermatome and all modalities decreased below C2...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28410233/factors-affecting-the-loss-of-med12-mutated-leiomyoma-cells-during-in-vitro-growth
#10
Jeannine Bloch, Carsten Holzmann, Dirk Koczan, Burkhard Maria Helmke, Jörn Bullerdiek
Uterine leiomyomas (UL) are the most prevalent symptomatic human tumors at all and somatic mutations of the gene encoding mediator subcomplex 12 (MED12) constitute the most frequent driver mutations in UL. Recently, a rapid loss of mutated cells during in vitro growth of UL-derived cell cultures was reported, resulting in doubts about the benefits of UL-derived cell cultures. To evaluate if the rapid loss of MED12-mutated cells in UL cell cultures depends on in vitro passaging, we set up cell cultures from nine UL from 40-50 year old Caucasian patients with at least one UL...
March 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28406809/hysteroscopy-for-abnormal-uterine-bleeding-and-fibroids
#11
Lindsey N Valentine, Linda D Bradley
Operative hysteroscopy is a safe and effective minimally invasive treatment option for submucosal and intramural leiomyomas. We discuss preoperative evaluation, fluid management, postoperative complications, preventative measures, and hysteroscopic outcomes. Technical instructions and tips for successful hysteroscopy, as well as the various equipment options most commonly utilized in the United States, are also reviewed.
June 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28400400/transperineal-aggressive-angiomyxoma
#12
Pedro Pereira, Elisa Melo Abreu, Teresa Margarida Cunha, Inês Rolim
A 45-year-old woman with a history of total hysterectomy with adnexal preservation for uterine leiomyomas presented to our hospital with a right gluteal palpable mass, which she first noticed 6 months before and had progressively enlarged since then.Radiological studies revealed a 14 cm lesion with translevator growth that displaced rather than invaded adjacent structures, with a peculiar whorled pattern on T2-weighted MRI, which enhanced following gadolinium administration. CT-guided biopsy was performed, and in conjunction with imaging features the diagnosis of an aggressive angiomyxoma was assumed and confirmed following surgical excision...
April 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28397198/the-2549-insertion-deletion-polymorphism-of-vegf-gene-associated-with-uterine-leiomyoma-susceptibility-in-women-from-southeastern-iran
#13
Farshid Keshavarzi, Saeedeh Salimi, Abbas Mohammadpour-Gharehbagh, Batool Teimoori, Atefeh Yazdi, Farzaneh Farajian-Mashhadi, Minoo Yaghmaei, Mojgan Mokhtari
OBJECTIVES: Vascular endothelial growth factor (VEGF) is an important angiogenic factor that regulates angiogenesis and mediates sex steroid-induced cell growth. The present study investigated the association of VEGF gene-2578C/A (rs699947) and -2549 insertion/deletion polymorphisms in the promoter region of VEGF-A gene and uterine leiomyoma susceptibility in Southeast of Iran. MATERIAL AND METHODS: One hundred and fifty five women with uterine leiomyoma and 157 age, BMI, and ethnicity matched healthy women were enrolled in this study...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28396787/a-giant-uterine-tumor-in-a-woman-with-myotonic-dystrophy
#14
Hiroshi Kataoka, Satoshi Ueno
Patients with myotonic dystrophy are at particularly high risk for cancer arising in the endometrium, brain, colon, or ovary. Giant leiomyoma can occur in patients with myotonic muscular dystrophy, a disease accompanied by muscle wasting.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28389786/pathological-findings-of-uterine-tumors-preoperatively-diagnosed-as-red-degeneration-of-leiomyoma-by-mri
#15
Go Nakai, Takashi Yamada, Takamitsu Hamada, Natsuko Atsukawa, Yoshikazu Tanaka, Kiyohito Yamamoto, Akira Higashiyama, Hiroshi Juri, Atsushi Nakamoto, Kazuhiro Yamamoto, Yoshinobu Hirose, Masahide Ohmichi, Yoshifumi Narumi
PURPOSE: Venous infarction of a leiomyoma is known as red degeneration of leiomyoma (RDL) and can be a cause of acute abdomen. Although magnetic resonance imaging (MRI) is the only modality that can depict the inner condition of a leiomyoma, the typical MR findings of RDL are sometimes identified incidentally even in asymptomatic patients. The purpose of this study is to clarify common pathological findings of uterine tumors preoperatively diagnosed as RDL by MRI. METHODS: We diagnosed 28 cases of RDL by MRI from March 2007 to April 2015...
April 7, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28380432/patients-with-uterine-leiomyoma-exhibit-a-high-incidence-but-low-mortality-rate-for-breast-cancer
#16
Te-Chun Shen, Te-Chun Hsia, Chieh-Lun Hsiao, Cheng-Li Lin, Chih-Yi Yang, Khay-Seng Soh, Liang-Chih Liu, Wen-Shin Chang, Chia-Wen Tsai, Da-Tian Bau
The association of uterine leiomyoma with increased risk of breast cancer is controversial. Therefore, we used the National Health Insurance Research Database of Taiwan to examine breast cancer incidence and mortality among Asian patients with and without uterine leiomyoma. We compared breast cancer incidence and mortality between 22,001 newly diagnosed uterine leiomyoma patients and 85,356 individuals without uterine leiomyoma matched by age and date of diagnosis. Adjusted hazard ratios for breast cancer were estimated using the Cox model...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28373439/characterization-of-leiomyomatoid-angiomatous-neuroendocrine-tumour-lant-like-tumour-in-the-myometrium-with-histopathological-examination
#17
Takuma Hayashi, Tomoyuki Ichimura, Mari Kasai, Kenji Sano, Dorit Zharhary, Tanri Shiozawa, Nobuo Yaegashi, Ikuo Konishi
Leiomyomatoid angiomatous neuroendocrine tumour (LANT) is possibly a new disease entity that was reported as a dimorphic neurosecretory tumour with a leiomyomatous vascular component; it was found in the pituitary. We describe uterine LANT-like malignant tumour in a 45-year-old woman with uterine mesenchymal tumour, diagnosed clinically as uterine leiomyoma. She underwent laparoscopic myomectomy. The tumour consisted of hyalinized vasculature, containing factor VIII-positive endothelium and α-smooth muscle actin-positive vascular smooth muscle cells, and stromal cells, expressing neuroadhesion molecules...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28365479/preconception-gynecological-risk-factors-of-postpartum-depression-among-japanese-women-the-japan-environment-and-children-s-study-jecs
#18
Sifa Marie Joelle Muchanga, Kahoko Yasumitsu-Lovell, Masamitsu Eitoku, Etongola Papy Mbelambela, Hitoshi Ninomiya, Kaori Komori, Rahma Tozin, Nagamasa Maeda, Mikiya Fujieda, Narufumi Suganuma
BACKGROUND: Postpartum depression is one of the major causes of disability among women who are on their childbearing years. Identifying people at risk of postpartum depression may improve its management. The objective of this study was to determine the probable association between postpartum depression and some preconception gynecological morbidities. METHODS: Data from a nationwide birth cohort study, the Japan Environment and Children's study (JECS), up to one month of postpartum were analyzed...
March 30, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28357079/cyclin-d1-g870a-polymorphism-association-with-uterine-leiomyoma-risk-and-in-silico-analysis
#19
Saeedeh Salimi, Mahnaz Shahrakipour, Azam Hajizadeh, Mojgan Mokhtari, Mahdieh Mousavi, Batool Teimoori, Minoo Yaghmaei
Uterine leiomyoma (UL) is the most common benign tumor causing considerable morbidity during the reproductive years in women. Cyclin D1 (CCND1) is a cell cycle regulatory protein that is required for the G1 phase, and increased expression levels of this protein may affect tumorigenesis. The present study aimed to assess the possible effect of the CCND1 G870A polymorphism on UL susceptibility. A total of 154 women with UL and 197 healthy women who were age-, body mass index (BMI)- and ethnicity-matched were genotyped for the CCND1 G870A (rs9344) polymorphism using the polymerase chain reaction-restriction fragment length polymorphism method...
February 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28344961/recurrence-factors-and-reproductive-outcomes-of-laparoscopic-myomectomy-and-minilaparotomic-myomectomy-for-uterine-leiomyomas
#20
Dong Gi Shin, Heon Jong Yoo, Yeon Ah Lee, In Sun Kwon, Ki Hwan Lee
OBJECTIVE: The aim of this study was to determine recurrence factors and reproductive outcomes of laparoscopic myomectomy (LM) and minilaparotomic myomectomy (MM) for treating uterine leiomyomas. METHODS: Between 2007 and 2013, 160 patients underwent myomectomy, including 122 who underwent LM and 38 who underwent MM. Patients were followed up for recurrence based on pelvic ultrasound exams. Only patients who were followed up for a minimum of two years were selected for this retrospective study...
March 2017: Obstetrics & Gynecology Science
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