نتایج جستجو برای: trophoblastic neoplasms
تعداد نتایج: 498723 فیلتر نتایج به سال:
RATIONALE Epithelioid trophoblastic tumor (ETT) is a distinctive but rare gestational trophoblastic neoplasia (GTN) composed of chorionic-type intermediate trophoblast cells. Approximately 50% ETT arose from the uterine cervix or lower uterine segment following a previous pregnancy with vaginal bleeding. With its unusual ability to simulate an invasive epithelioid neoplasm, ETT frequently poses...
background : gestational trophoblastic neoplasia (gtn) refers to malignant lesions that arise from abnormal proliferation of placental trophoblast. even in its metastatic forms gtn is curable with a cure rate of 90-100 %. currently, methotrexate with or without folic acid, andactinomycin d is recommended for low risk gtn. the aim of this study is to compare the efficacy of methotrexate and acti...
Gestational trophoblastic disease describes a number of gynaecological tumours that originate in the trophoblast layer, including hydatidiform mole (complete or partial), placental site trophoblastic tumour, choriocarcinoma and gestational trophoblastic neoplasia (GTN). Invasive moles are responsible for most cases of localized GTN. Two cases of GTN previously reported in the literature exhibit...
UNLABELLED The persistence of polymorphic trophoblastic hyperplasia in a hydatidiform mole is an extremely rare condition. Its early diagnosis is essential since such cases can transform into invasive tumours. MATERIALS AND METHODS The paraffin-embedded biopsies were routinely stained with HE. Immunohistochemical staining reactions were performed with monoclonal antibodies against inhibin-alp...
It is universally recognized that an accurate and precise staging and classification system for gestational trophoblastic neoplasia (GTN) is essential to enable clinicians to assess the prognosis or the risk of patients, to individualize and to optimize their treatment. There have been a variety of staging and classification systems developed by different centres and some are still being used. ...
Human chorionic gonadotropin (hCG) is considered to be one of the factors which regulate relaxin secretion in humans. Serum immunoreactive relaxin levels are increased and are detectable by radioimmunoassay both in normal and molar pregnancy. Circulating hCG levels are increased in trophoblastic disease. In the present study, relaxin and hCG levels were sequentially measured in patients with in...
BACKGROUND Predictive factors of damage to the Fallopian tube may guide the treatment for patients with tubal pregnancy. The aim of this study was to assess the predictive value of the following parameters: gestational age, serum beta-hCG concentrations and ultrasound findings. METHODS A total of 105 patients with ampullary pregnancy undergoing salpingectomy were analysed. Trophoblastic invas...
placental site trophoblastic tumor (pstt) is the rare variant of gestational trophoblastic diseases (gtd), which differs histologically and immunologically from gtd. diagnosis of pstt is often difficult and delayed. in most cases, diagnosis is not possible until the surgery is performed. the most therapeutic choice is hysterectomy and it is usually successful. here we report two cases of pstt.
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