Hamartomatous polyps of the palatine tonsil are very rare. They have been variously termed as a lymphangiectatic fibrous polyp, lipoma, pedunculated tonsil etc. in the English literature. We present here a case of hamartomatous polyp of the tonsil occurring in a 32-year-old male who presented with bilateral enlarged palatine tonsils with recurrent tonsillitis. Surgical excision showed two pa...

  Background and Objectives: Nasal polyposis is a diseases resulting from complex pathogenetic mechanisms. Some studies showed that TGFβ1 had significant role in this pathogenesis. In this study, we investigated the roe of cytokines and mediators in polyp development. Material and Methods: In this case- control study, healthy nasal mucosal samples were obtained from 24 peopl...

  The gastric inflammatory fibroid polyp (IFP) is a rare benign tumor of unknown etiology that is localized mainly in the antrum and presents endoscopically as submucosal mass. The lesion manifests as abdominal pain, weight loss, bleeding, dyspeptic symptoms, and iron deficiency anemia. We report a case of gastric IFP presented with microcytic anaemia, dyspepsia, malena and weight loss. Endosc...

BACKGROUND AND OBJECTIVES Inorganic polyphosphate (polyP), a ubiquitous phosphate polymer with ATP-like bonds, has recently been related to a variety of functions including blood coagulation and cell proliferation. We investigated the effects of polyP in the biology of human plasma cells (PC), responsible for the production and maintenance of antibodies in response to antigens. DESIGN AND MET...

BACKGROUND The aim of this study was to evaluate gene expression profiles in unaffected colon mucosa and polyp tissue from patients with unifocal colon polyp to investigate the potential mucosa impairment in normal-appearing colon mucosa from these patients. MATERIAL AND METHODS Colon polyp patients were prospectively recruited. We obtained colon biopsies from the normal-appearing sites and pol...

Antrochoanal polyp is an infrequent nasal mass and is uncommon in elderly people. The case is presented of a 65-year-old man who developed a giant antrochoanal polyp which blocked the right maxillary sinus, nasal cavity, nasopharynx, oropharynx and hypopharynx. Endoscopic removal of the polyp as well as the base of the polyp was performed.

Introduction: Angiectatic nasal polyp (ANP) is a rare entity of inflammatory sinonasal polyp, constituting 4 to 5% of all nasal polyps.1 An angiomatous polyp originates from a sinochoanal polyp, either an antrochoanal or a sphenochoanal polyp. Their hallmark feature is extensive vascular proliferation and ectasia with deposition of pseudoamyloid and the presence of atypical stromal cells. This ...

BACKGROUND Pre-existing polyps, especially large polyps, are known to be the major source for colorectal cancer, but there is limited available information about factors that are associated with polyp size and polyp growth. We aim to determine factors associated with polyp size in different age groups. METHODS Colonoscopy data were prospectively collected from 67 adult gastrointestinal practi...

A 59-year-old man was admitted to the Beijing Friendship Hospital with progressive dysphagia for solid foods. He had been coughing for 20 days, which resulted in the repeat regurgitation of the polyp into his mouth followed by swallowing of the polyp [1]. Results of laboratory tests on admission were negative. Endoscopy revealed a large polyp stalk protruding into the lumen from Killian’s trian...

Heat treatment is a simple technique for releasing polyphosphate (polyP) from microbial cells. We investigated the ultrastructural alterations of polyP granules (PPGs) in response to heat treatment at 70 degrees C using a polyP-accumulating phoU mutant of Escherichia coli as a model organism. Electron microscopic and energy-dispersive X-ray analysis suggested concurrent occurrence of PPG degrad...