Rectal GIST Presenting as a Submucosal Calculus

This case report presents an incidental finding of a rectal GIST (gastrointestinal stromal tumor) presenting as a submucosal calculus, not previously reported. A 53-year-old man without a significant medical history presented with abdominal pain in the left lower quadrant, and with constipation. Upon rectal examination, a hard submucosal swelling was palpated 4 cm from the anus, at 3 o’clock, in the left rectum wall. X-ray photos, computerized tomography (CT)-scan and a magnetic resonance imaging (MRI) scan clearly showed a calculus. Excision revealed a turnip-like lesion, 3.1×2.3×1.8 cm. Analysis showed it was a rectal GIST, a rare mesenchymal tumor of the gastrointestinal tract, which expressed CD117 (or c-kit, a marker of kit-receptor tyrosine kinase) and CD34. Calcification is not a usual clinicopathological feature of GISTs [1–3], and although a number of rectal GISTs have been reported [4–9], we have found no cases so far of rectal GIST presenting as a submucosal calculus

Thick calcification from a GIST of the stomach penetrating into pericolic soft tissue - report of a case

Thick calcification is a rare presentation of gastrointestinal stromal tumor (GIST). Penetration into gastric mucosa and pericolic soft tissue has never been reported. We report a case of gastric GIST with cystic degeneration and thick calcification in an 81-year old female, who presented with hematemesis and severe abdominal pain. Thick calcification of this tumor penetrating into pericolic soft tissue was noted and successfully treated by distal gastrectomy and partial colectomy. For gastrointestinal tumors with thick calcification, even with benign behavior, surgical intervention should be considered for both oncological considerations and prevention of catastrophes like perforation or penetration into surrounding soft tissue

Habitatvoorkeur van vleermuizen in de urbane omgeving

Contains fulltext : 181363.pdf (publisher's version ) (Open Access

Mock wedding

Mock wedding to celebrate upcoming marriage of Ethel Schaffer and F.B. Van Duzee. L-R: Herb Grindler (bridesmaid), Crae Dawson (flower girl), Bunty Roberts (father of the bride), Bill Coulson (bride), Wayne Roberts (bridesmaid), and Frank Plaskett (minister). Jointly hosted by the Gyrettes and Gyros

UvA@Home Team Description paper 2018

This team description paper describes the approach that will be taken by the UvA@Home team to compete in Social Standard Platform League. The research challenges concern person recognition, object recognition, natural language processing and navigation. Modules implemented so far include people detection, face recognition, speech recognition and natural language processing. The remaining challenges will be solved using the previous research and achievements of the UvA teams in the RoboCup