نتایج جستجو برای: Trophoblastic neoplasms

تعداد نتایج: 498723  

Journal: :International journal of clinical and experimental pathology 2015
Xiaofei Zhang Caiyun Zhou Minghua Yu Xiaoduan Chen

Gestational trophoblastic neoplasms are a group of fetal trophoblastic tumors including choriocarcinomas, epithelioid trophoblastic tumors (ETTs), and placental site trophoblastic tumors (PSTTs). Mixed gestational trophoblastic neoplasms are extremely rare. The existence of mixed gestational trophoblastic neoplasms that were composed of choriocarcinoma and/or PSTT and/or ETT was also reported. ...

Journal: :acta medica iranica 0
f. ghaemmaghami t. ashraf ganjoie

early recognition of gestational trophoblastic neoplasm (gtn) will maximize the chances of cure with chemotherapy but some patients present with many different symptoms months or even years after the causative pregnancy making diagnosis difficult. clinicians should be aware of the possibility of gtn in any reproductive age woman with bizarre central nervous system, gastrointestinal, pulmonary s...

2012
Mustafa Kara

Placental site nodule, developing from intermediate trophoblasts, is a rare benign lesion. Although it is a benign lesion, it is histopathological differential diagnosis from placental site trophoblastic tumor and epithelioid trophoblastic tumor which are aggressive lesions of the intermediate trophoblasts, and non-trophoblastic neoplasms such as squamous cell carcinoma, is important due to its...

2016
Richard A Harvey

Human Chorionic Gonadotrophin (hCG) is mainly a product of the syncytiotropoblastic cells of the placenta although it is also secreted, in lesser quantities, by cytotrophoblastic cells and several nonplacental tissues. It is produced in gestational trophoblastic neoplasms (GTN) and maybe seen in nontrophoblastic neoplasms (Stenman, 2006). hCG is essential in pregnancy as it promotes transformat...

Journal: :Obstetrics and gynecology clinics of North America 2012
R Osborne J Dodge

Trophoblastic neoplasms are a truly fascinating set of diseases that arise from a failed gestation. A molar pregnancy is an allograft of fetal tissue typically containing only paternal chromosomes that may invade the maternal decidua following a failed gestation that may have arisen up to decades earlier. Choriocarcinoma (CCA), the most common malignant form of trophoblastic disease, represente...

Journal: :Indian journal of pathology & microbiology 2006
A L Hemalatha Deepak B Kumar D Sumanth M G Abhishek H B Shashidhar

Placental site trophoblastic tumour (PSTT) is a rare form of trophoblastic disease accounting for < 2% of all gestational trophoblastic neoplasms. Most of the cases follow a normal pregnancy and a small number have a preceeding molar pregnancy or spontaneous abortion. It can occur as early as several weeks or as late as 15 years after normal delivery, molar pregnancy or abortion. Excessive inte...

Journal: :Hematology/oncology clinics of North America 2012
Donald Peter Goldstein Ross S Berkowitz

Gestational trophoblastic neoplasms are malignant lesions that arise from placental villous and extravillous trophoblast. Four clinicopathologic conditions make up this entity: invasive mole (IM), choriocarcinoma (CCA), placental-site trophoblastic tumor (PSTT), and epithelioid trophoblastic tumor (ETT). IM and CCA, which make up the majority of these tumors, are highly responsive to chemothera...

Journal: :Lancet 2009
Jimmy Opigo Charles Woodrow

www.thelancet.com Vol 374 July 4, 2009 7 trophoblastic tumour. These advances have become possible because of the ability to measure tumour load with hCG, diagnose hydatidiform mole in early pregnancy by ultrasound, and the ability to determine whether or not metastases are present on CT and MRI, together with greater understanding of the pathology and molecular physiology of trophoblastic neop...

Journal: :The Thoracic and cardiovascular surgeon 2012
Ju Sik Yun Ga Eon Kim Kook Joo Na Sang Yun Song

An epithelioid trophoblastic tumor (ETT) is a form of gestational trophoblastic neoplasms that arise from trophoblasts. The tumor generally occurs in women of reproductive age and has a characteristic growth pattern and immunohistochemical profile. We present an extremely rare case of a primary ETT occurring in the lungs with an adenocarcinoma in the contralateral lung as synchronous double pri...

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