نتایج جستجو برای: reactive hyperplastic lesions
تعداد نتایج: 323079 فیلتر نتایج به سال:
Treatment of mouse mammary glands with a high concentration of 7,12-dimethylbenzo(a)anthracene in whole organ culture was reported by Banerjee et al. to transform foci of lobuloalveoli to a hormone-independent state, and to give rise to mammary hyperplastic outgrowths and adenocarcinomas in vivo. In the present study using the identical system, mammary glands of BALB/c mice were exposed to 7,12...
BACKGROUND/AIMS Elevated levels of serum gastrin (SG) have been associated with tumorigenic effects in a number of gastrointestinal cancers. We decided to investigate the relationship between SG and gastric epithelial lesions. MATERIALS AND METHODS A total of 90 patients with gastric epithelial lesions (hyperplastic polyp, 12; adenoma, 41; early gastric cancer, 29; advanced gastric cancer, 8)...
Histological specimens of 30 distinct adenomas and 30 distinct carcinomas were studied by image analysis to quantify nuclear size and shape. These data were used to derive a discriminant equation, which permitted the lesions to be classified into two groups based on nuclear atypia. Next, 50 superficial type tumors of the colon (34 IIa lesions, 9 IIc + IIa lesions, and 7 IIc lesions) <10 mm in l...
BACKGROUND The histogenesis of human colorectal hyperplastic polyps and colorectal adenomas is poorly understood even now. METHOD Human colorectal adenomas, hyperplastic polyps, and normal colorectal mucosae (patients with familial adenomatous polyposis and hereditary non-polyposis colorectal carcinoma were excluded) were obtained during colonoscopy and microdissected into individual crypts. ...
The author investigated histopathology of 615 consecutive duodenal specimens in our pathology laboratory. Computer search of the duodenal lesions was performed. Review of histological slides was done, when appropriate. The duodenal specimens were composed of 567 benign lesions and 48 malignant lesions. The 567 benign lesions were composed of chronic non-specific duodenitis in 334 cases (60.0%),...
Serrated lesions in the colorectum include all epithelial neoplastic lesions, which show a sawtooth-like morphology crypts. Classification systems nosologically divide colon serrated polyps into three different categories, primarily emphasizing their micromorphological growth pattern and cytodifferentiation: (1) hyperplastic polyps, (2) sessile adenomas/polyps (3) traditional adenomas. Overall,...
Systemic inflammation and nutritional status play important roles in the development progression of various cancers, including colorectal cancer. The prognosis for malignancies can be predicted using inflammatory marker known as HALP (calculated by hemoglobin, albumin, lymphocytes, platelets). Furthermore, recent studies have claimed score to help distinguish between benign malignant lesions. W...
Introduction The frequency of pediatric and adolescent oral and maxillofacial lesions is various in different societies. The present study aimed at investigating the frequency of oral and maxillofacial pediatric and adolescent biopsies in Zahedan (southeast Iran), and compare the results with other epidemiologic studies.Methods and Materials This retrospective study reviewed oral and maxillofac...
AIMS The differential diagnosis of thyroid nodules in routine practice can be problemmatic for both pathologists and clinicians. Effective treatment requires a determination of the biological nature of the lesions. For this reason, ancilliary diagnostic markers along with histological examination of the nodules may be useful. The objective of this study was to evaluate the diagnostic usefulness...
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