نتایج جستجو برای: villous tumour
تعداد نتایج: 62063 فیلتر نتایج به سال:
BACKGROUND Villous duodenal adenomas are rare, tend to malignant alteration and recurrency if surgical procedures are not sufficiently radical. They are mostly localized in the second portion of the duodenum and close to a papilla and are prone to malignant alteration. CASE REPORT In this paper we presented a 79-year-old female patient already operated on twice elsewhere due to obstructive ja...
It is just 100 years since Marchand [1] identified choriocarcinoma as a tumour arising from placental villous trophoblast. Earlier description of similar tumours failed to identify their tissue of origin. Gestational Trophoblastic Disease (GTD) is the terminological umbrella now used to span the spectrum of cellular proliferations ranging from villous forms of hydatiform mole through invasive m...
An argyrophilic technique (AgNOR) was applied to paraffin wax sections of 12 tubular adenomas, 17 villous adenomas with moderate and severe atypia, and 21 colonic adenocarcinomas. The range of the mean number of nucleolar organiser regions (NORS) per nucleus was 1.54-3.28 (99% CI 2.29-3.04) for tubular adenomas 3.07-4.36 (2.98-4.43), and 3.60-5.02 (3.74-4.69) for villous adenomas with moderate ...
Heparin is used clinically for the prevention of pregnancy complications associated with prothrombotic disorders, especially antiphospholipid antibody syndrome. Recent studies have suggested that heparin may exert direct effects on placental trophoblast, independently of its anticoagulant activity. We now demonstrate that heparin abrogates apoptosis of primary first trimester villous trophoblas...
Between 1954 and 1988 only a total of twenty five cases of primary adenocarcinoma of the small bowel (excluding periampillary tumours) were recorded at the Department of Histopathology, Belfast City Hospital. Of these, 14 tumours were located in the jejunum: the remainder arose in the ileum. The average age at presentation was 61.3 years and a slight female to male preponderance of 1:7:1 was no...
Gestational trophoblastic disease (GTD) represents a spectrum of lesions characterised by an abnormal proliferation of trophoblast, including complete hydatidiform mole, partial hydatidiform mole, invasive hydatidiform mole, choriocarcinoma, placental site trophoblastic tumour, epithelioid trophoblastic tumour, placental site nodule and plaque, and exaggerated placental site reaction. Complete ...
CONTEXT Enteric duplication cysts are rare lesions of uncertain incidence and natural history. Pre-operative confirmation of diagnosis can be difficult. This case reports an adult duodenal duplication cyst presenting with grossly elevated intra-lesional levels of tumour markers. CASE REPORT A 57-year-old female was found to have a complex cystic lesion of the head of the pancreas. Intra-lesio...
Endoscopy using magnification narrow band imaging (mNBI) allows detailed assessment of mucosal surface and vascular pattern. This may help in better identification and prediction of the nature of the lesion. The role of this technology in duodenum is still evolving. Studies have shown that mNBI has high accuracy in predicting villous atrophy in the duodenum. Limited data suggests that this tech...
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