نتایج جستجو برای: adrenocortical carcinoma
تعداد نتایج: 398467 فیلتر نتایج به سال:
CONTEXT Adrenocortical virilizing tumors are rare in the pediatric age group. Laparoscopic surgery is the gold standard method for treatment of adrenal functional tumors under 6 cm in size, in adults. There has been very little use of laparoscopy in children and there is no report of its application in the treatment of adrenal carcinoma in childhood. DESIGN Case report. CASE REPORT We perfo...
We present a machine learning system for the differential diagnosis of benign adrenocortical adenoma (ACA) vs. malignant adrenocortical carcinoma (ACC). The data employed for the classification are urinary excretion values of 32 steroid metabolites. We apply prototypebased classification techniques to discriminate the classes, in particular, we use modifications of Generalized Learning Vector Q...
Adrenocortical carcinoma (ACC) is a malignant tumour arising from the adrenal cortex, whereas pheochromocytoma is a tumour of the adrenal medulla with occasional presence at extra-adrenal sites. Most of the adrenocortical tumours present clinically with Cushing's syndrome and signs of virilization due to over-production of the respective hormones. It is, however, rare for an adrenocortical tumo...
Ganglioneuromas (GNs) are rare benign tumors originating from the neural crest tissue. They characteristically located in posterior mediastinum and retroperitoneum; rarely found adrenal gland. GNs usually hormonally inactive, most of cases detected incidentally. We report a case 25-year-old female who presented with pain abdomen right upper quadrant. Imaging studies showed large well defined hy...
Adrenocortical carcinoma is a rare endocrine malignancy with an estimated worldwide incidence of 0.5 - 2 per million/year. This neoplasm is characterized by a high risk of recurrence and a dismal prognosis owing to unsatisfactory overall survival. Surgery represents the cornerstone of adrenocortical carcinoma therapy, which can be associated to radiotherapy and adjuvant mitotane administration....
We report the imaging findings of a patient with adrenocortical carcinoma who showed pelvic tumor thrombosis extending from sacral bone metastasis. Contrast-enhanced computed tomography demonstrated extensive intraluminal filling defects in the pelvic veins. A lytic lesion in the sacrum was also noted and continuity between the sacral lesion and the filling defect in the branch of pelvic veins ...
CONTEXT Adrenocortical carcinomas (ACC) are a rare tumor type with a poor five-year survival rate and limited treatment options. OBJECTIVE Understanding of the molecular pathogenesis of this disease has been aided by genomic analyses highlighting alterations in TP53, WNT, and IGF signaling pathways. Further elucidation is needed to reveal therapeutically actionable targets in ACC. DESIGN In...
Adrenohepatic fusion is a relatively common condition that has been reported in the literature and explained as a result of normal aging. However, the presence of a neoplastic process in the adrenohepatic fusion is relatively uncommon. A 48-year-old male presented with RUQ abdominal pain with findings of a huge liver mass with adrenohepatic fusion in the computed tomography scan. Histopathologi...
Paediatric adrenocortical carcinoma is a rare malignancy with poor prognosis. Here we analyse 37 adrenocortical tumours (ACTs) by whole-genome, whole-exome and/or transcriptome sequencing. Most cases (91%) show loss of heterozygosity (LOH) of chromosome 11p, with uniform selection against the maternal chromosome. IGF2 on chromosome 11p is overexpressed in 100% of the tumours. TP53 mutations and...
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