نتایج جستجو برای: hamartomatous polyps
تعداد نتایج: 11578 فیلتر نتایج به سال:
aim : the aim of this study was to present the demographic and clinical characteristics of patients with gastric polypoid lesions and to study the histopathologic features of these lesions. background : the frequency of gastric polyps is gradually increasing due to the widespread use of endoscopic examinations. patients and methods : clinical and endoscopic features of 100 gastric polyposis pa...
colorectal cancer is the second leading cause of cancer death worldwide. through risk assessment of malignancy in polyps, screening programs can achieve the best results. this study aimed to determine the association between the grade of dysplasia and the location of colorectal polyps. 240 colorectal adenomatous polyps which were referred to department of pathology at rasoul-e-akram hospital be...
Hyperplastic dental follicle is an odontogenic hamartomatous lesion associated with delayed or tooth eruption failure in young patients. The occurrence of this pericoronal dental lesion may be single or multiple and it seems to be more frequent than literature has reported. We present a literature review focusing on the etiopathogenesis and clinicopathological features of this hamartomatous les...
J uvenile polyposis (JP or JPS for juvenile polyposis syndrome) is an autosomal dominant disorder that often presents in childhood. It is characterized by the presence of hamartomatous (juvenile) polyps that vary in number from fi ve to several hundred (1, 2). Th e polyps are found primarily in the colorectum, but they can be present throughout the gastrointestinal tract, from the stomach to th...
Background: Most of colorectal cancers (CRC) have originated from intestinal polyps. Evaluating of the expression level of genes that are involved in tumors growth and development, may consider as diagnostic factor of malignancy in the polyps. AXIN2 regulates the level of nuclear β-catenin in a negative-feedback loop there by being a negative regulator and target gene at the same time. The aims...
Enteroscopy makes it possible to resect small-bowel polyps and avoid intestinal obstruction inpatientswithPeutz–Jeghers syndrome [1]. We report the case of a 54-year-old man with Peutz–Jeghers syndrome, referred to our center because of recurrent episodes of intestinal occlusion. Computed tomography showed a voluminous polyp in the proximal part of the jejunum causing small-bowel obstruction. W...
BACKGROUND Germ-cell testicular cancer has not been definitively linked to any known hereditary cancer susceptibility disorder. Familial testicular cancer in the presence of other findings in affected and unaffected family members might indicate a previously-unidentified hereditary cancer syndrome. CASE PRESENTATION The patient was diagnosed with a left testicular seminoma at age 28, and trea...
Cowden syndrome (OMIM No 158350) is a pleomorphic, autosomal dominant syndrome characterised by hamartomas in tissues derived from the endoderm, mesoderm, and ectoderm. It is caused by germline mutations in the PTEN gene and is allelic to the Bannayan-Riley-Ruvalcaba and Lhermitte-Duclos syndromes. The three syndromes are defined on clinical grounds but there is overlap in their definitions. Th...
Results 441 individuals from 353 families were identified, and to-date, medical records confirmed 254 diagnoses, which were included for analysis. Ninety patients (35.4%) had germline mutations in self or kin (31 MSH2, 36 MLHI, 1 MSH6, 3 PMS2, 24 APC, 2 MYH biallelic and 1 BRCA2). Individuals were classified into six categories; (a) 74 had Lynch syndrome (LS) confirmed by germline mutation or t...
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