Polyphosphate (polyP), a polymer of orthophosphate moieties released from the dense granules of activated platelets, is a procoagulant agent. Inositol pyrophosphates, another group of phosphate-rich molecules, consist of mono- and diphosphates substituted on an inositol ring. Diphosphoinositol pentakisphosphate (IP7), the most abundant inositol pyrophosphate, is synthesized on phosphorylation o...

Polypectomy is the standard therapy for gastrointestinal pedunculated polyps [1]. However, achieving effective countertraction to snare the stalk of the polyp located in the direction of gravity can sometimes be difficult [2]. Herein, we present a case of a large gastric polyp located on the greater curvature of the gastric body that was resected using the “water immersion” technique in order t...

A fibrovascular polyp is a rare benign disease of the upper digestive tract and is usually located in the esophagus. To our knowledge, this is the first case of gastric fibrovascular polyp presenting with melena reported in the English literature. The polyp was well visualized on endoscopy and removed with laparoscopic wedge resection. Histology confirmed fibrovascular polyp of the stomach.

Computational intelligent systems could reduce polyp miss rate in colonoscopy for colon cancer diagnosis and, thus, increase the efficiency of the procedure. One of the main problems of existing polyp localization methods is a lack of spatio-temporal stability in their response. We propose to explore the response of a given polyp localization across temporal windows in order to select those ima...

Sphenochoanal polyp is a rare form of choanal polyp which originates from the sphenoid sinus and extends to posterior choanae via sphenoethmoidal recess. Its occurrence is extremely rare. They can be easily mistaken for antrochoanal polyp. Symptomatically, it is similar to antrochoanal polyp. So, adequate preoperative evaluation with diagnostic nasal endoscopy and computed tomography or magneti...

Fibroepithelial pharyngeal polyps are rare. We herein report a case of a 56-year-old Asian woman who presented with voice hoarseness and throat discomfort for several years because of a giant pharyngeal polyp. We resected the polyp under general anesthesia. It originated in the left hypopharyngeal wall. Postoperative recovery was uneventful. Her sore throat was diminished within 1 week after th...

A gastric inverted hyperplastic polyp is a rare type of gastric polyp and is characterized by downward growth of a variety of mucosal components into the submucosa. The polyp consists of columnar cells resembling foveolar epithelium and pyloric gland epithelium and can coexist with gastritis cystica profunda. Frequently, adenocarcinoma can coexist, but the relation is not clear. A 77-year-old m...

Nodular fasciitis is a rare benign lesion. Here we report a case of post-auricular nodular fasciitis, which was misdiagnosed by fine-needle aspiration cytology (FNAC) as pleomorphic adenoma. An 18-year-old male presented at Al-Nahdha Hospital, physical examination revealed a right post aural firm immobile mass. Radiology suggested the presence of a hypo-dense to iso-dense subcutaneous mass. The...