نتایج جستجو برای: rectum neoplasm
تعداد نتایج: 192001 فیلتر نتایج به سال:
background: in the current study the effect of shielded colpostat on rectum received dose was calculated in cervical brachytherapy using monte carlo (mc) method. materials and methods: two 60co sources of gzp6 brachytherapy unit used for intracavitary treatments were simulated using mcnpx monte carlo code. also the two types of colpostats including shielded and unshielded were simulated inside ...
A patient presenting an unusual clinical picture was recently admitted to the New Haven Hospital. She showed definite objective evidence of involvement of the central nervous system, but other obscure signs present made an accurate diagnosis difficult. At necropsy a most unexpected lesion was found involving the base of the brain, the nerve roots, and the spinal cord. The case is of particular ...
Four patients are described in whom a follicular carcinoma developed following thyroidectomy for a benign follicular neoplasm. It is possible that the initial thyroid neoplasm was a well- differentiated follicular carcinoma which was microscopically indistinguishable from a benign adenoma. Realizing this pathologic pitfall in thyroid diagnosis, the need for meticulous examination of the pa...
Purpose:Colorectal cancer studies typically include both colon and rectum tumors as a common entity, though this assumption is controversial andonlyminor differences have been reported at themolecular and epidemiologic level. We conducted a molecular study based on gene expression data of tumors from colon and rectum to assess the degree of similarity between these cancer sites at transcriptomi...
BACKGROUND Faecal impaction is frequently observed in children with chronic constipation. The term megarectum is often used to describe this finding. AIM To evaluate rectal functioning and rectal measures in constipated children with a filled rectum, in order to define the terms faecal impaction, enlarged rectum, and megarectum. METHODS All children underwent radiological investigation, col...
The purpose of this study was to evaluate the performance of a region growing technique for segmenting prostate, bladder and rectum in CT images of prostate cancer patients. Prostate, bladder and rectum were segmented in all CT images of 10 patients using the region growing technique and manual tracing. Volumes of the above organs computed with the region growing technique were compared with th...
The relationship among the lysyl oxidase (LOX) G473A single nucleotide polymorphism (SNP), cigarette smoking and lung, colorectal, colon and rectum cancer susceptibility was studied in 200 cases of lung cancer, 335 cases of colorectal cancer including 130 cases of colon cancer and 205 cases of rectum cancer, and 335 healthy people in Tangshan, China. Peripheral blood DNA samples were collected,...
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