Acute pancreatitis associated with peroral double-balloon enteroscopy： A case report

A 58-year-old Japanese man had tarry stool and severe anemia. Neither upper nor lower gastrointestinal (GI) endoscopy showed any localized lesions. Thus, the source of his GI bleeding was suspected to be in the small intestine, and he underwent peroral double-balloon enteroscopy (DBE) using EN-450T5 (Fujinon-Toshiba ES System Co., Tokyo, Japan). There were no lesions considered to be the source of GI bleeding. After the procedure, the patient began to experience abdominal pain. Laboratory tests revealed hyperamylasemia and abdominal computed tomography revealed an inflammation of the pancreas and the peripancreas. He was thus diagnosed to have acute pancreatitis. Conservative treatments resulted in both clinical and laboratory amelioration. He had no history of alcohol ingestion, gallstone disease or pancreatitis. Magnetic resonance cholangio-pancreatography demonstrated no structural alterations and no stones in the pancreatobiliary ductal system. As his abdominal pain started after the procedure, his acute pancreatitis was thus thought to have been related to the peroral DBE. This is the first reported case of acute pancreatitis probably associated with peroral DBE.     

A pedunculated polyp-shaped small-bowel lymphangioma causing gastrointestinal bleeding and treated by double-balloon enteroscopy

We report a rare case of a small-bowel lymphangioma causing massive gastrointestinal (GI) bleeding that we successfully diagnosed and treated using double-balloon enteroscopy (DBE). An 81-year-old woman suffering from repeated GI bleeding of unknown origin underwent a capsule endoscopy at a previous hospital. She was suspected of having bleeding from the jejunum, and was referred to our department for diagnosis and treatment. An oral DBE revealed a 20 mm × 10 mm, regularly surfaced, white to yellowish, elongated, pedunculated jejunal polyp with small erosions at 10 cm distal to the ligament of Treiz. Since no other source of bleeding was identified by endoscopy in the deep jejunum, an endoscopic polypectomy (EP) was performed for this lesion. A subsequent histopathological examination of the resected polyp showed clusters of lymphatic vessels with marked cystic dilatation in the submucosa and the deep layer of the lamina propria mucosae. These characteristics are consistent with the typical features of small-bowel lymphangioma with erosions. Although clipping hemostasis was performed during EP, re-bleeding occurred. Finally, a complete hemostasis was achieved by performing an additional argon plasma coagulation.     

Challenges of banding jejunal varices in an 8-year-old child

Endoscoic variceal ligation(EVL) by the application of bands on small bowel varices is a relatively rare procedure in gastroenterology and hepatology. There are no previously reported paediatric cases of EVL for jejunal varices. We report a case of an eight-yearold male patient with a complex surgical background leading to jejunal varices and short bowel syndrome, presenting with obscure but profound acute gastrointestinal bleeding. Wireless capsule endoscopy and double balloon enteroscopy(DBE) confirmed jejunal varices as the source of bleeding. The commercially available variceal banding devices are not long enough to be used either with DBE or with push enteroscopes. With the use of an operating gastroscope, four bands were placed successfully on the afferent and efferent ends of the leads of the 2 of the varices. Initial hemostasis was achieved with obliteration of the varices after three separate applications. This case illustrates the feasibility of achieving initial hemostasis in the pediatric population.     

Gastrointestinal stromal tumours (GIST) of the jejunum in a patient with neurofibromatosis type 1 (von Recklingshausen's disease)

CASE REPORT: A 72-year-old female patient with known neurofibromatosis type 1 was admitted to the hospital with symptomatic anaemia and a history of melaena. Upper and lower endoscopy did not show any signs of bleeding. Ultrasound and computed tomography revealed an abdominal mass. The histological analysis of a US-guided puncture showed a mesenchymal tumour with spindle-shaped appearance. Laparotomy revealed two jejunal tumours which could be classified as gastrointestinal stromal tumours (GIST) by immunohistochemistry. CONCLUSION: Patients with neurofibromatosis type 1 have an increased risk of developing gastrointestinal tumours including rare types such as GIST. Because the localisation in the small intestine by conventional endoscopy can be difficult, further diagnostic means such as ultrasound, computed tomography or possibly capsule endoscopy should be considered.     

Effect of sunitinib on metastatic gastrointestinal stromal tumor in patients with neurofibromatosis type 1： A case report

Gastrointestinal stromal tumor (GIST) represents the most common mesenchymal malignancy of the gastrointestinal (GI) tract. In neurofibromatosis (NF), the increased incidence of tumor needs to be considered even in non-symptomatic individuals. Patients with neurofibromatosis NF type 1 have an increased risk of developing GI tumors including rare types such as GIST. We report a case of GIST in a 53-year-old male patient with neurofibromatosis. The patient was diagnosed with NF four years ago and his medical history revealed that he was hospitalized 5 times with a provisional diagnosis of massive lower gastrointestinal bleeding. GIST was diagnosed at explorative laparotomy and the tumor was 21 cm × 13 cm × 7 cm in size. Immunohistochemical examination showed that vimentin, actin and CD117 were positive. Computerized tomography showed peritoneal implants three months later. Imatinib mesylate (600 mg/d) was initiated. However, control computerized tomography revealed liver and omental metastasis. The dosage was elevated to 800 mg/d. Despite high dosage, the progression of the metastatic lesions continued in the liver and omentum. The patient started oral sunitinib malate (Sutent? Pfizer Inc, New York, NY, USA) 50 mg per day for 4 consecutive weeks, followed by 2 wk off per treatment cycle. The metastatic lesions in the liver and omentum were decreased in size after four courses, suggesting that sunitinib is also an effective treatment modality for metastatic GIST in NF patients.     

Double-balloon endoscopy-diagnosed multiple small intestinal ulcers in a Churg-Strauss syndrome patient

Churg-Strauss syndrome(CSS) is a systemic vascular disorder characterized by severe bronchial asthma hypereosinophilia,and allergic rhinitis.Small intestina ulcers associated with CSS are a relatively rare manifestation that causes gastrointestinal bleeding.Multiple deep ulcers with an irregular shape are characteristic of small intestinal involvement of CSS.Video-capsuleendoscopy(VCE),double-balloon endoscopy(DBE) and Spirus assisted enteroscopy have been developed recently and enabled observation of the small intestine In this case report,we have described a patient with CSS who had multiple deep ulcers in the jejunum detected by oral DBE.Since severe gastrointestinal(GI) involvement has been identified as an independent factor associated with poor outcome,the careful investigation of GI tract must be needed for CSS patients with GI symptoms.We describe the usefulness of DBE for diagnosis of small intestinal ulcers in patient with CSS.     

33例胃肠间质瘤临床诊治分析

目的探讨胃肠间质瘤（GIST）的临床表现、诊断与外科治疗方法。方法回顾性分析33例GIST患者的临床表现,CT、胃肠镜、超声内镜（EUS）等辅助检查资料,免疫组化诊断及外科手术治疗的结果。结果 33例患者临床表现为不同程度的上消化道出血、腹痛、腹胀、腹部包块等。均行手术治疗,肿瘤位于胃24例,十二指肠1例,小肠6例,直肠2例;术后病理诊断9例危险程度为极低度,7例危险程度为低度,8例危险程度为中度,9例危险程度为高度;免疫组化以CD117、CD34阳性率较高,分别为90.9%,87.9%。结论 GIST临床症状无特异性,术前诊断困难,确诊依赖于病理检查及免疫组化,外科手术治疗是首选方法,分子靶向治疗可缓解肿瘤复发,改善预后。     

Clinical Study on Gastrointestinal Stromal Tumors (GIST) in Iceland, 1990–2003

This is a whole population-based study on clinical symptoms, surgical treatment, and outcome of GIST. All mesenchymal tumors in the digestive tract diagnosed from 1990 to 2003 were identified. All reports were reviewed, all tumors were stained with antibodies to c-kit, and the diagnosis of GIST was confirmed. Clinical, pathological, treatment, and outcome data were analyzed. The study included 53 patients with GIST. The mean age at diagnosis was 65.8±13.6 years (SD). Tumor distribution included 62% in the upper, 32% in the middle, and 6% in the lower digestive tract. Mean tumor size was 4.9±4.4 cm (SD). Gastrointestinal (GI) bleeding was the main symptom in 53% (20/38) of symptomatic cases; most presented with acute gastrointestinal bleeding. Complete surgical resection was performed in 87% (46/53) of patients. Eight of the 53 tumors (15.1%) metastasized, 7 of which were nongastric. The disease-specific death rate at 5 years was 85%, and 5-year survival after complete resection was 64.1%. We conclude that GISTs are often found incidentally but GI bleeding is the most common presentation. Five-year survival is better than previously reported and gastric GIST seems to be more benign than nongastric. GIST seems to metastasize mainly intra-abdominally. These authors contributed equally to the study.     

GI hemorrhage with fulminant shock induced by jejunal gastrointestinal stromal tumor (GIST) coincident with duodenal neuroendocrine carcinoma (NET) + neurofibromatosis (NF) -- case report and review of the literature

BACKGROUND: The incidence of neuroendocrine tumors (NET) and of gastrointestinal stromal tumors (GIST) is 0.5 and 1 - 2 in 100,000; the prevalence of neurofibromatosis is 1 in 3000 live births in Western countries. CASE REPORT: A 43-year-old white woman with a six-month history of meleana, paleness, vertigo and fatigue was not referred to any gastrointestinal doctor for diagnostic work-up. Finally, she collapsed and was admitted to hospital because of an acute gastrointestinal bleeding. Endoscopically the source of bleeding could not be localized while blood in the duodenum and proximal jejunum was demonstrable. The source of bleeding could not be identified by endoscopy, CT scan or angiography. The patient developed a fulminant gastrointestinal hemorrhage with hemoglobin levels below 3.5 g %. An emergency laparotomy and pylorus-preventing Whipple operation was performed. Pathological studies showed a GIST with 3.5 cm diameter of the proximal jejunum which was the source of bleeding. Coincidentally a neuroendocrine carcinoma of the duodenum was found. CONCLUSION: This case is the first presentation of the coincidence of a neuroendocrine carcinoma of the duodenum with a jejunal bleeding gastrointestinal stromal tumor in neurofibromatosis type1 which led to hemorrhagic shock. In neurofibromatosis -- even if non-symptomatic -- the increased incidence of tumor needs to be considered.     

Gastrointestinal stromal tumor of the stomach with a giant abscess penetrating the gastric lumen

Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. In large GISTs, cystic degeneration, necrosis and focal hemorrhage that occur inside the tumor can result in gastrointestinal bleeding. We describe a case of a 74-year old male with GIST of the stomach accompanied with a giant abscess that penetrated the gastric lumen. The patient experienced undiagnosed fever for two months prior to hospitalization. Gastrointestinal endoscopy, X-ray series and computed tomography of the patient’s abdomen revealed a gastric submucosal tumor in the fornix, with a fistula to the gastric lumen that was inundated with a great deal of pus. The mass was diagnosed as a GIST from biopsy specimens. The patient was treated by endoscopic drainage of the abscess and intravenous administration of antibiotics. Eventually, a partial gastrectomy was performed. He was also administered Imanitib mesylate as adjuvant therapy. He was followed up for 2 years and no metastasis or recurrence was recognized at the follow- up examinations. This is the first report of a patient with clearly diagnosed GIST with endoscopic evidence of an abscess penetrating into the gastric lumen.     

胃肠道间质瘤137例分析

目的探讨胃肠道间质瘤(GIST)发病的一般情况和诊断方法的准确率。方法回顾分析中国医科大学附属第一医院2006年4月-2013年10月经手术、病理诊断的137例GIST的内镜、影像学及临床资料。结果 GIST的发病年龄集中于45~65岁,男女比例为1.1∶1,就诊时表现腹痛52例(38.0%),腹部包块40例(29.2%),消化道出血27例(19.7%),其他症状18例(13.1%)。本组患者CD117和CD34的阳性表达率分别为74.5%、67.2%。内镜检查的符合率为88.31%,CT检查的符合率为93.28%。结论 GIST好发于中年患者,男女无明显差异,以腹痛、腹部肿块、消化道出血为主要临床表现,GIST的诊断有赖于胃镜、CT、病理及免疫组织化学检查,GIST应采取相应的影像学检查手段。     

Capsule endoscopy: past,present, and future

A capsule endoscope is a swallowable wireless miniature camera for getting images of the gastrointestinal (GI) mucosa. The initial capsule endoscope model was developed by Given Imaging and approved in Western countries in 2001. Before the introduction of capsule endoscopy (CE) and double-balloon endoscopy (DBE), there was no effective modality for the evaluation and management of patients with obscure GI bleeding. Obscure GI bleeding is defined as bleeding of unknown origin that persists or recurs after a negative initial or primary endoscopy (colonoscopy or upper endoscopy) result. The first capsule endoscope model, which is now regarded as a first-line tool for the detection of abnormalities of the small bowel, was the PillCam SB. It was approved in Japan in April 2007. The main indication for use of the PillCam SB is obscure GI bleeding. Almost the only complication of CE is capsule retention, which is the capsule remaining in the digestive tract for a minimum of 2 weeks. A retained capsule can be retrieved by DBE. There are some limitations of CE in that it cannot be used to obtain a biopsy specimen or for endoscopic treatment. However, the combination of a PillCam SB and DBE seems to be the best strategy for management of obscure GI bleeding. Recently, several new types of capsule endoscope have been developed, such as Olympus CE for the small bowel, PillCam ESO for investigation of esophageal diseases, and PillCam COLON for detection of colonic neoplasias. In the near future, CE is expected to have a positive impact on many aspects of GI disease evaluation and management.     

Ileus secondary to wireless capsule enteroscopy

Wireless capsule enteroscopy, being a novel, painless investigative technique, is reported to be significantly superior to push enteroscopy in its ability to find bleeding abnormalities in the small intestine. Here we report a case of acute jejunal obstruction following wireless capsule endoscopy. The patient had a 1-month history of gastrointestinal bleeding of unknown source. Further evaluation including gastroscopy and colonoscopy, angiography and computed tomography (angio–CT), and radio-labeled erythrocytes scan failed to reveal a source of bleeding. Therefore, wireless capsule enteroscopy was performed. Before capsule endoscopy, there was no clinical or imaging evidence of strictures or stenosis. At readmission it could be shown that there were two inflamed strictures of the small intestine. The capsule was detected at a stricture of the small intestine detected by abdominal ultrasonography and conventional computed tomography. The patient underwent a medical treatment with steroidal and other anti-inflammatory drugs for a total of 23 days and was discharged without complaints. Acute laparotomy after readmission with jejunal ileus proofed the capsule occluding two highly inflamed jejunal stenosis caused by Crohn disease. The present case demonstrates the potential for complications when wireless capsule enteroscopy is performed in the presence of intestinal strictures. Any history of inflammatory bowel disease, abdominal irradiation, cancer, obstruction, and abdominal surgery must be elicited in detail and may exclude the use of wireless capsule enteroscopy.     

Diagnosis and satisfactory surgical treatment of a jejunal stromal tumor

GIST is the most common mesenchymal tumor of the gastrointestinal tract. The discovery of KIT proto-oncogene mutations in the pathogenesis of this tumor, and the development of imatinib mesylate, a specific inhibitor of KIT tyrosine kinase function have revolutionized the treatment of GIST. We present the clinical case of a patient with an upper digestive bleeding secondary to a jejunal GIST. Therapeutic options are highlighted.     

Bleeding from foveolar hyperplasia developing on a gastrointestinal stromal tumor of the stomach

A 52‐year‐old Japanese woman who presented with gastrointestinal (GI) bleeding underwent a proximal gastrectomy for a gastrointestinal stromal tumor (GIST) with a foveolar hyperplasia at the apex of the tumor, 4.5 cm in size, located in the upper body of the stomach. Although GIST are often asymptomatic and are found only incidentally, clinical symptoms such as bleeding, abdominal pain, or obstruction, occasionally lead to a premorbid diagnosis. When submucosal tumors present GI bleeding, the source of the bleeding usually is an ulceration of the mucosa over the tumor. However, in the present study, it was thought that the bleeding originated from the region of foveolar hyperplasia.     

Giant gastrointestinal stromal tumor in the esophagus

We report a case of a 74-year-old woman with an esophageal gastrointestinal stromal tumor (GIST). Endoscopic examination suggested a submucosal tumor in the middle-lower thoracic esophagus. Computed tomography showed a solid mass 95 × 56 × 44 mm in size, suggesting an esophageal mesenchymal tumor. Endoscopic ultrasonography-guided fine-needle aspiration biopsy was positive for c-kit and CD34, and negative for both S-100 and desmin, on immunohistochemical examination, confirming this to be a GIST. The patient underwent transthoracic esophagectomy with esophageal reconstruction using a gastric tube through the subcutaneous route. The tumor was completely resected, and there was no lymph node metastasis. The pathological examination confirmed the tumor to be at high risk for recurrence because of its size and the presence of necrosis. We are carefully following the patient conservatively with no adjuvant chemotherapy such as imatinib mesylate.     

A Prospective Study on Evaluating the Diagnostic Yield of Video Capsule Endoscopy Followed by Directed Double-Balloon Enteroscopy in Patients with Obscure Gastrointestinal Bleeding

Aims  

Video capsule endoscopy (VCE) and double-balloon enteroscopy (DBE) are two novel methods for examining the small bowel and could be complementary to each other. The aim of the present study is to prospectively evaluate the diagnostic yield of VCE followed by a directed DBE in patients with obscure gastrointestinal (GI) bleeding.     

Double balloon enteroscopy in children:Diagnosis,treatment,and safety

AIM:To assess the feasibility and utility of double balloon enteroscopy(DBE)in the management of small bowel diseases in children. METHODS:Fourteen patients(10 males)with a median age of 12.9 years(range 8.1-16.7)underwent DBE; 5 for Peutz-Jeghers syndrome(PJ syndrome),2 for chronic abdominal pain,4 for obscure gastrointestinal (GI)bleeding,2 with angiomatous malformations(1 blue rubber bleb nevus syndrome)having persistent GI bleeding,and 1 with Cowden‘s syndrome with multiple polyps and previous intussusc...     

Prevalence of mid-gastrointestinal bleeding in patients with acute overt gastrointestinal bleeding: multi-center experience with 1,044 consecutive patients

Background  Video capsule endoscopy (VCE) and double-balloon enteroscopy (DBE) enable the detection of small intestinal lesions. Aim  To examine causes of acute overt gastrointestinal (GI) bleeding and the prevalence of mid-GI bleeding, defined as small intestinal bleeding from the ampulla of Vater to the terminal ileum, in a multi-center experience in Japan in the VCE/DBE era. Methods  Data were collected retrospectively from consecutive patients with acute overt GI bleeding in ten participating hospitals. All patients were examined by esophagogastroduodenoscopy and/or colonoscopy. When the source of bleeding was not identified after these procedures, patients suspected to have mid-GI bleeding were referred to our hospital and VCE/DBE was performed to determine the source of bleeding. Results  Of the 1044 patients with acute overt GI bleeding, 524 (50.2%) patients were diagnosed with upper GI bleeding, 442 (42.3%) with lower GI bleeding, and 13 (1.2%) with mid-GI bleeding. Gastric ulcer was the most common cause of bleeding (20.4%). Among cases of mid-GI bleeding, ulcers were found in 4 (30.8%) patients, erosions in 3 (23.1%), angiodysplasia in 3 (23.1%), submucosal tumor in 2 (15.4%), and hemangioma in one (7.7%). Seven lesions were located in the jejunum, 5 in the ileum, and one in both the jejunum and ileum. Analysis of age-related cause showed that the prevalence of mid-GI bleeding among younger patients under 40 years of age was higher (5%) than in other age groups (1–2%). Conclusion  mid-GI bleeding is rare among Japanese patients with acute overt GI bleeding.     

Development of enterohepatic fistula after embolization in ileal gastrointestinal stromal tumor: A case report

Gastrointestinal stromal tumor(GIST)is a rare mesenchymal tumor of the gastrointestinal tract that has been associated with the formation of fistulas to adjacent organs in few case reports.However,GIST with enterohepatic fistula has not been reported.Here we report the case of an enterohepatic fistula that occurred after embolization of a liver mass originating in the distal ileum.An 87-year-old woman was hospitalized for melena.On initial conventional endoscopy,a bleeding focus in the gastrointestinal tract was not found.Because of massive hematochezia,enteroscopy was performed through the anus.A protruding,ulcerative mass was found in the distal ileum that was suspected to be the source of the bleeding;a biopsy sample was taken.Electrocoagulation was not successful in controlling the bleeding;therefore,embolization was performed.After embolization,the patient developed a high fever and severe abdominal tenderness with rebound tenderness.Follow-up abdominopelvic computed tomography revealed an enterohepatic fistula between the liver and distal ileum.The fistula was treated surgically by segmental resection of the distal ileum and unlooping of the liver mass.