نتایج جستجو برای: testicular carcinoma in situ cis
تعداد نتایج: 17056855 فیلتر نتایج به سال:
Two hundred and fifty biopsy specimens from the contralateral testis in patients with unilateral germinal testicular cancer were analysed by light microscopy for carcinoma-in-situ changes. Changes were found in 13 (5.2%) patients. One-third of patients with an atrophic contralateral testis (volume less than or equal to 12 ml) and one-fifth of patients with a history of cryptorchidism had change...
The immunohistochemical reaction to oncostatin M (OSM) was studied in normal human testes at different ages (fetuses, newborns, children, pubertal boys, adults, and elderly men), as well as in several testicular disorders including carcinoma-in-situ cells (CIS), germ cell tumors, benign functioning Leydig cell tumor, androgen insensitivity syndrome, Klinefelter's syndrome, and cryptorchidism. P...
Individuals with various intersex states who carry Y-chromosome material bear a high risk of developing testicular neoplasia. In order to gain more insight into the pathogenesis of this neoplasia, the current study evaluates the differentiation of the seminiferous epithelium in 46,XY dysgenetic male pseudohermaphroditism. Immunohistochemical evaluation was performed using the germ cell-specific...
Testicular germ cell tumours, seminoma (SE) and non-seminoma (NS), of young adult men develop from a precursor cell, carcinoma in situ (CIS), which resembles foetal gonocytes and retains embryonic pluripotency. We used microarrays to analyse microRNA (miRNA) expression in 12 human testis samples with CIS cells and compared it with miRNA expression profiles of normal adult testis, testis with Se...
adenocarcinoma in situ is one of the premalignant lesions of the cervix and its incidence is believed to be increasing while the pathogenesis of the disease is not clearly understood. management of adenocarcinoma in situ (ais) unlike carcinoma in situ (cis) has not been clearly described in the current literature. here we describe conservative management and serial olposcopy of two pregnant wo...
Testicular germ cell cancers in young adult men derive from a precursor lesion called carcinoma in situ (CIS) of the testis. CIS cells were suggested to arise from primordial germ cells or gonocytes. However, direct studies on purified samples of CIS cells are lacking. To overcome this problem, we performed laser microdissection of CIS cells. Highly enriched cell populations were obtained and s...
Carcinoma in situ in the testis has its origin in the fetal gonad and leads to testicular cancer in young adulthood. It can be detected in a testicular biopsy and treated with irradiation, which can preserve testosterone production of the man. These are the key findings of Niels E. Skakkebaek that changed our view of testicular tumourigenesis during the last fifty years. These and other finding...
CONTEXT Maturation delay of germ cells and their progression into carcinoma in situ (CIS) frequently occurs in intersex patients. A developmentally delayed germ cell resembles a CIS cell and displays prolonged expression of immunohistochemical markers used for the diagnosis of CIS. This questions their applicability in young children. OBJECTIVE The objective of the study was the elaboration o...
BACKGROUND Testicular germ cell tumours (TGCTs) originate from a common precursor, carcinoma in situ (CIS). Diagnosis at the CIS stage is desirable as it minimizes the necessary treatment. A detailed clinical evaluation of an approach to detect CIS cells in the ejaculate using primordial germ cell/gonocyte markers is presented. METHODS Immunocytological staining for AP-2gamma [and in some cas...
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