نتایج جستجو برای: hamartomatous polyps

تعداد نتایج: 11578  

2015
Michael Pitiakoudis Konstantinos Romanidis Alexandra Giatromanolaki Nikos Courcoutsakis Eleni-Aikaterini Nagorni Soultana Foutzitzi Alexandra Tsaroucha Petros Zezos Georgios Kouklakis

INTRODUCTION In this case report, we describe the successful treatment of a small-bowel intussusception, which was caused by a 3 cm solitary hamartomatous polyp, with single-incision laparoscopic surgery. Single-incision laparoscopic surgery is a minimally invasive surgical procedure with important advantages that allows the reduction of the intussusception and the resection of the polyp. This ...

Journal: :International journal of molecular medicine 2006
Anja-Katrin Bosserhoff Elke-Ingrid Grussendorf-Conen Albert Rübben Sabine Rudnik-Schöneborn Klaus Zerres Reinhard Buettner Sabine Merkelbach-Bruse

Cowden syndrome is a non-adenomatous gastrointestinal polyposis syndrome with inactivation of PTEN, a dual-phosphatase tumor suppressor gene. Patients with loss of wildtype PTEN expression from one allele carry an increased risk of malignant breast, thyroid and brain tumors. However, the risk of malignant transformation in gastrointestinal polyps is still unclear. In this study, we describe a k...

Journal: :Gut 2007
W W J de Leng M Jansen J J Keller M de Gijsel A N A Milne F H M Morsink M A J Weterman C A Iacobuzio-Donahue H C Clevers F M Giardiello G J A Offerhaus

Peutz–Jeghers syndrome (PJS) is an autosomal dominant cancer susceptibility syndrome characterised by mucocutaneous melanin pigmentation, hamartomatous polyps, and an 18-fold increase in intestinal and extraintestinal cancer risk. PJS is caused by a germline mutation in LKB1, a gene that plays a role in cellular polarity. Proper cellular polarity is critical for accurate asymmetrical stem cell ...

Journal: :Journal of Korean Medical Science 1999
H. S. Choi Y. J. Park J. G. Park

Peutz-Jeghers syndrome is an autosomal dominant inherited disorder characterized by hamartomatous polyps in the small bowel and mucocutaneous pigmentation. Patients with Peutz-Jeghers syndrome often present as surgical emergencies with complications of the polyps, such as intussusception, bowel obstruction and bleeding. Furthermore, repeated operations may be needed in some patients, which may ...

Journal: :Journal of the College of Physicians and Surgeons--Pakistan : JCPSP 2016
Naheed Sultan Rabbiya Ali

Peutz-Jeghers syndrome (PJS) is an autosomal dominant hamartomatous polyposis of the gastrointestinal tract, with pigmentation around lips, the buccal mucosa, and anal area. Patients have a strong family history. Patients of PJS present with abdominal pain, blood in stools, and occasionally melena because of polyps, along with classical mucocutaneous pigmentation. Very rarely a sporadic case of...

Journal: :Turk patoloji dergisi 2016
Hamide Sayar Çağdaş Sayar Fulya Adamhasan Aysun Uğuz

Lymphangiomatous polyps of the palatine tonsils are uncommon hamartomatous proliferations that could be clinically misdiagnosed as malignant neoplasms. These polyps consist of dilated lymphatic vessels located inside fibrous and/or adipose tissue. In this paper, a 27-year-old man who presented to the outpatient clinic with a complaint of dysphagia is presented. On physical examination, the pati...

2014
Noam Shussman Steven D. Wexner

A polyp is defined as any mass protruding into the lumen of a hollow viscus. Colorectal polyps may be classified by their macroscopic appearance as sessile (flat, arising directly from the mucosal layer) or pedunculated (extending from the mucosa through a fibrovascular stalk). Colorectal polyps may also be histologically classified as neoplastic or as non-neoplastic (hyperplastic, hamartomatou...

Introduction: Hamartomatous Polyposis Syndromes (HPS) are a rare group of dominant autosomal inheritance, which is characterized by the development of hamartomatous polyps in the gastrointestinal tract.  This syndrome included Juvenile Polyposis syndrome (JPS), Peutz-Jeghers syndrome (PJS), and PTEN Hamartoma Tumour Syndrome (PHTS). PTEN Hamartoma Tumour Syndrome (PHTS) itself includes Cowden ...

Journal: :Revista espanola de enfermedades digestivas : organo oficial de la Sociedad Espanola de Patologia Digestiva 2012
Orestis Ioannidis Styliani Papaemmanouil George Paraskevas Anastasios Kotronis Stavros Chatzopoulos Athina Konstantara Nikolaos Papadimitriou Apostolos Makrantonakis Emmanouil Kakoutis

Peutz-Jeghers syndrome is a rare hereditary autosomal dominant disease caused by a mutation of the tumor suppressor gene serine/threonine kinase 11 located in chromosome 19p13.3. It is characterized by the presence of extensive mucocutaneous pigmentation, especially of the lips and the occurrence of hamartomatous polyps throughout the gastrointestinal tract. Gastrointestinal hamartomas occur pr...

Journal: :Journal of pediatric hematology/oncology 2013
Michael F Wangler Rishikesh Chavan M John Hicks Jed G Nuchtern Madhuri Hegde Sharon E Plon Patrick A Thompson

Peutz-Jeghers syndrome (PJS) is an autosomal dominant cancer predisposition syndrome characterized by melanotic macules and hamartomatous polyps. Small-bowel surveillance in the pediatric PJS population is not designed to identify small-bowel malignancy, which is thought to arise in adulthood. A 13-year-old boy presented with lead-point intussusception, requiring emergent surgical resection. A ...

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