نتایج جستجو برای: androgen secreting neoplasm
تعداد نتایج: 215468 فیلتر نتایج به سال:
background the gonadectomy in patients with androgen insensitivity syndrome (ais) has been conventionally performed using laparotomic techniques. but currently several reports have suggested laparoscopic gonadectomy in these patients because of shorter hospital stay and minimal postoperative pain and hemorrhage. objective to report the laparoscopic gonadectomy in 11 patients suffering from andr...
Ovarian steroid cell tumors (SCTs) are a rare type of sex-cord stromal that account for 0.1% all ovarian tumors. These can occur at any age and typically secrete hormones such as androstenedione testosterone. We report young woman with known microprolactinoma who presented secondary amenorrhea virilization was found to have secreting SCT. A 32-year-old nulligravid history infertility evaluation...
The androgen receptor (AR), a transcription factor that mediates the action of androgens in target tissues, is expressed in nearly all prostate cancers. Carcinoma of the prostate is the most frequently diagnosed neoplasm in men in industrialized countries. Palliative treatment for non-organ-confined prostate cancer aims to down-regulate the concentration of circulating androgen or to block the ...
background and objective: determination of hormone receptor status in the management of breast cancer is well-established. the aim of this study was to evaluate the frequency of androgen receptor (ar) expression in invasive ductal carcinoma of breast. materials and methods: for this purpose, 55 cases of invasive ductal breast carcinoma were examined using a monoclonal antibody against ar on for...
introduction: type i diabetes mellitus is caused by autoimmune destruction of the insulin-producing β-cells. a new potential method for curing the disease is transplantation of differentiated insulin- secreting cells from human embryonic stem cells. methods: human embryonic stem cell lines (royan h1) were used to produce embryoid bodies. differentiation carried out by growth factor-mediated sel...
background: androgen insensitivity syndrome (ais) or testicular feminization is a partial or complete inability of cell response to androgen. the cause is enzymatic defect in synthesis of testosterone, resulting sexually immature phenotypically female, with primary amenorrhea. there are three categories of ais, complete, partial and mild, depending on the degree of external genital masculinizat...
BACKGROUND Sympathetic urinary bladder paragangliomas are rare catecholamine-secreting neuroendocrine tumors arising from neural crest cells. They are uncommon urinary bladder neoplasms. Symptoms classically include micturition-related or unrelated palpitations and syncope with hypertension, headaches, diaphoresis, and hematuria. Other than being attributable to vasovagal reactions, micturition...
Objective. Morphologically, β-HCG secreting somatic carcinoma can be difficult to distinguish from epithelioid trophoblastic tumors (ETT). However, their distinction is critical due to their potentially differing prognoses and choice of chemotherapy. Presence of biparental alleles in ETT can be identified with molecular testing. We describe a patient who presented with metastatic carcinoma and ...
Introduction: Type I diabetes mellitus is caused by autoimmune destruction of the insulin-producing β-cells. A new potential method for curing the disease is transplantation of differentiated insulin- secreting cells from human embryonic stem cells. Methods: Human embryonic stem cell lines (Royan H1) were used to produce embryoid bodies. Differentiation carried out by growth factor-mediated se...
Endometrial cancer (EC) and ovarian cancer are common gynaecological malignancies. The impact of androgen action in these cancers is poorly understood; however, there is emerging evidence to suggest that targeting androgen signalling may be of therapeutic benefit. Epidemiological evidence suggests that there is an increased risk of EC associated with exposure to elevated levels of androgens, an...
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