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| 1 | Adenomyoma of the small intestine显示文摘Adenomyoma of the gastrointestinal tract is a rare benign tumor-like lesion.The small intestine is the second most frequent location,usually in the periampullary area,but the lesion also occurs in the jejunum and ileum.While adenomyoma of the Vaterian system is primarily diagnosed in adults,more than half of reported cases of jejunal and ileal adenomyoma have been diagnosed in pediatric patients.Adenomyoma of the periampullary area usually presents with biliary obstruction or abdominal pain,whereas jejunal and ileal adenomyoma usually presents with intussusception or is incidentally discovered during surgery or autopsy.Since endoscopic and radiological examination yields uncharacteristic findings,histopathological evaluation is important in adenomyoma diagnosis.Pathologically,adenomyoma consists of glandular structures of various sizes and interlacing smooth muscle bundles that surround the glandular elements.The pathogenesis of adenomyoma is generally considered to be either a form of hamartoma or a pancreatic heterotopia.Although limited resection is considered the most effective treatment,pancreaticoduodenectomy is often performed when the lesion occurs in the periampullary area due to preoperative misdiagnosis as a carcinoma.It is,therefore,important that clinicians and pathologists maintain current knowledge of the disease to avoid inaccurate diagnosis,which could lead to unnecessary surgery. | Yoshihisa Takahashi Toshio Fukusato | 2011 | World Journal of Gastrointestinal Pathophysiology2011，2，6： | 1 |
| 2 | Adult intussusception secondary to an ileum hamartoma显示文摘Intussusception is a rare condition in the adult population.However,in contrast to its presentation in children,an identifiable etiology is found in the majority of cases.Clinical manifestations of adult intussusception are non-specific and patients may present with acute,intermittent or chronic symptoms,predominantly those of intestinal obstruction.A 27-year-old male patient with recurrent abdominal pain secondary to intussusception is herein reported.The clinical presentation and ultrasonographic findings led to the diagnosis.At laparotomy,an ileal hamartoma was found as the lead point of the intussusception.Surgical management and histopathologic studies are described.A recurrent intestinal obstruction and classic ultrasound findings may lead to the diagnosis of intussusception but surgical exploration remains essential.The principle of resection without reduction is well established. | Carlos M Nuo-Guzmán José Arróniz-Jáuregui Ismael Espejo Josué Solís-Ugalde José Ignacio Gómez-Ontiveros Arturo Vargas-Gerónimo Jesús Valle-González | 2011 | World Journal of Gastrointestinal Oncology2011，3，6： | 0 |
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