1/28. Preoperative sonographic diagnosis of midgut malrotation with volvulus in adults: the "whirlpool" sign.Midgut malrotation and volvulus, found mostly in children, are rare and difficult to diagnose preoperatively in adults. We report 2 cases in which a 68-year-old man and a 75-year-old woman presented with intermittent cramping abdominal pain, abdominal distention, and vomiting. Abdominal sonography demonstrated wrapping of the superior mesenteric vein and bowel loops around the superior mesenteric artery (the "whirlpool sign") in both patients. Abdominal CT revealed similar findings. The diagnoses of midgut volvulus and mesenteric malrotation were made, and the patients underwent laparotomy. The man was confirmed to have duodenojejunal malrotation and volvulus, and the woman had cecal volvulus. The whirlpool sign is valuable for the preoperative diagnosis of mesenteric vessel malrotation and midgut volvulus.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/28. The prepuce flap in the reconstruction of male anal stenosis.Circumferential stenosis of the male anal canal was repaired using a subcutaneous prepuce flap. The stenosis was released to create a rhomboid defect. Then, to cover the defect a rectangular flap was designed on the hairless ventral side of the penis. The flap was raised over the Buck's fascia while preserving the subcutaneous vessels in the dartos fascia, which formed the pedicle of the flap. The flap was transposed to the defect by passing it through a tunnel in the perineum. The postoperative course was uneventful and the result was good. The flap had reliable vascularity, was very thin, and pliable so that it could adapt to the rhomboid defect in the anal canal.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
3/28. Interstitial cystitis and ileus in pediatric-onset systemic lupus erythematosus.A girl aged 11 years presented with autoimmune hemolytic anemia with thrombocytopenia, and subsequently developed severe abdominal pain, vomiting, and pollakiuria. X-ray findings of her abdomen demonstrated paralytic ileus with intestinal wall thickening. Intravenous pyelography revealed bilateral hydroureter with mild hydronephrosis and contracted bladder. Pathological examination of her bladder revealed interstitial cystitis, with evidence of focal deposition of IgG and C3 in a granular pattern on small blood vessel walls. She was diagnosed as having systemic lupus erythematosus (SLE) associated with paralytic ileus and chronic interstitial cystitis. Although initiation of high-dose prednisolone therapy resulted in a gradual improvement in clinical symptoms, reducing the dosage of prednisolone caused a relapse. To our knowledge, the combination of paralytic ileus and chronic interstitial cystitis is quite uncommon in pediatric-onset SLE.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
4/28. Sclerosing encapsulating peritonitis and non-occlusive mesenteric infarction found at autopsy in a man who had undergone continuous ambulatory peritoneal dialysis: a histochemical and immunohistochemical study.This is a report of a post-mortem histological, histochemical, and immunohistochemical examination of a rare case of sclerosing encapsulating peritonitis (SEP) and non-occlusive mesenteric infarction (NOMI), two serious complications of continuous ambulatory peritoneal dialysis (CAPD), with which a man suffering hepatitis c virus (HCV)-induced liver cirrhosis for 7 years and trauma-induced paraplegia for 50 years had been treated for 1 year. The direct cause of death was encephalopathy caused by extreme hyperammonemia (11 250 microg/dL in serum). The autopsy revealed that the SEP had drastically reduced the length of the small intestine to 210 cm, 180 cm of which presented acute ischemic enteritis with Gram-negative bacterial infection. Histological examination of the SEP revealed that the exterior was composed of normal serosal elastic lamina, but with a cocoon-like appearance remarkably thickened by fibrosis to 3-8 times that of the normal subserosal layer and consisting of spindle cells and blood vessels, with some infiltration of mast cells and lymphocytes. The immunohistochemical examination of the spindle cells revealed few AE1/AE3( ) cells, HHF35( ) cells, and CD34( ) cells, many CD117( ) cells with slight proliferative activity based on MIB-1 positivity (proliferation index <1%), but no CD44( ) cells. It was concluded that either the few CD34( ) and/or the many CD117( ) cells were mesenteric stem cells that had originated from the serosa, proliferated, then differentiated into myofibroblasts or fibroblasts, producing collagen and hyaluronic acid in the matrix, leading to the gradual formation of the SEP, which was induced by the continual irritation of CAPD.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
5/28. Primary systemic amyloidosis presenting as a colonic stricture: successful treatment with left hemicolectomy followed by autologous hematopoietic stem-cell transplantation: report of a case.Intestinal tract involvement by primary systemic amyloidosis is frequent but usually asymptomatic. Ischemic colitis caused by amyloid infiltration of wall blood vessels can occasionally be observed. We report a 62-year-old female with primary systemic amyloidosis who presented with intestinal obstruction caused by ischemic stricture of the sigmoid colon, secondary to submucosal amyloid deposition. The patient was successfully treated with surgical resection followed by high-dose chemotherapy and hematopoietic stem-cell transplantation. The clinical manifestations and differential diagnosis of gastrointestinal involvement of primary systemic amyloidosis, as well as its current treatment, are discussed.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
6/28. Laparoscopic repair of a right paraduodenal hernia.BACKGROUND: Laparoscopic repair of a right paraduodenal hernia has never been described in the literature. A 24-year-old woman was admitted after 2 weeks of intermittent abdominal pain associated with nausea and vomiting. physical examination was normal. Laboratory studies and upper endoscopy were normal. Computed tomography revealed that the small bowel was on the right side of the abdomen and the colon on the left, suspicious for malrotation. Subsequent upper gastrointestinal series with small bowel follow-through revealed the ligament of Treitz on the right with the small bowel encased within a probable hernia sac. A presumptive diagnosis of a right paraduodenal hernia was made. methods AND RESULTS: Initial access was obtained with a 10-mm infraumbilical port followed by placement of 5-mm ports in the right and left upper and lower quadrants. The duodenum was identified and the small bowel was found encased within a hernia sac, which was opened widely from the duodenum to the pelvis. The hernia sac was opened laterally to avoid injury to the superior mesenteric vessels. The small bowel was then released from the sac into the peritoneal cavity. The entire bowel was inspected and no other abnormalities were noted. The patient had resolution of her abdominal pain and her postoperative course was uncomplicated. She was discharged home on postoperative day 3 and has since done exceptionally well. CONCLUSIONS: Paraduodenal hernia, a rare cause of small bowel obstruction, can present a diagnostic challenge. However, when the diagnosis is made preoperatively, a laparoscopic repair is a feasible and practical option.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
7/28. Middle colic artery thrombosis as a result of retained intraperitoneal gallstone after laparoscopic cholecystectomy.Spilled gallstones during laparoscopic cholecystectomy are associated with a number of complications such as infection, abscess, inflammation, adhesions, cutaneous sinuses, small bowel obstruction, incarcerated hernia, and generalized septicemia. We report a case of a patient with middle colic vessel erosion and thrombosis secondary to a retained gallstone following laparoscopic cholecystectomy 11 years ago. At operation, the patient was found to have a necrotic transverse colon with a large 2 cm gallstone compressing her middle colic vessels. An extended right hemicolectomy was performed with a primary anastomosis. The importance of stone retrieval during laparoscopic cholecystectomy is emphasized.- - - - - - - - - - ranking = 2keywords = vessel (Clic here for more details about this article) |
8/28. intestinal obstruction in the terminal ileum caused by an anomalous congenital vascular band between the mesoappendix and the mesentery: report of a case.We report a case of intestinal obstruction caused by a congenital abnormal vascular band in a 17-year-old boy. The patient was admitted with acute colicky abdominal pain, and an emergency laparotomy revealed that the ileum was strangulated by a fibrous band with vessels about 2 mm in diameter and 7 cm in length, extending from the antemesenterium of the terminal ileum to the mesoappendix. The affected intestine was resected with the band and the appendix. Histologically, the fibrous band was composed of loose connective tissue containing arteries, veins, and nerve fibers, suggesting that it was congenital and originated from a remnant of the ventral mesentery in the embryonic period. There have been few reports of intestinal obstruction being caused by a congenital vascular band, especially in patients beyond the pediatric age group.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
9/28. radiation induced small bowel "web" formation is associated with acquired microvascular dysfunction.BACKGROUND AND AIMS: radiation therapy of abdominal and pelvic solid tumours results in late intestinal toxicity of a severe nature in approximately 5% of cases. These manifestations may include ischaemia and stricture formation, which may present as "webs". These webs are likely to play a role in the pathogenesis of recurrent bowel obstruction. The mechanisms of microvascular injury to the bowel in the setting of radiation have not been defined. We hypothesised that microvascular dysfunction with impaired vasodilation to acetylcholine (Ach) would be an acquired pathophysiological abnormality in radiation and "web" formation. methods: A 40 year old patient treated with radiation, two years previously, for an anal squamous cell cancer presented with recurrent small bowel obstruction. "Webs" in the distal ileum were detected using wireless capsule endoscopy, after small bowel barium radiographs failed to demonstrate a lesion. Following resection, freshly isolated 50-150 mum diameter arterioles from the "web" and adjacent normal calibre bowel were analysed with histology and microvessel physiological studies. RESULTS: After constriction (30-50%) with endothelin, dilation to graded doses of Ach (10(-9)-10(-4) M) was observed in vessels dissected from the stricture and the adjacent normal calibre area. Ach dilation was reduced in vessels from "web" (mean diameter 7 (2)%; n = 3, p < 0.01) compared with the adjacent unaffected bowel (mean diameter 85 (5)%). Dihydroethidine and dichlorofluorescein diacetate intravital staining demonstrated increased reactive oxygen species production in microvessels from "web" compared with adjacent normal calibre bowel. histology from the strictured bowel demonstrated narrowing of the arterial lumen due to intimal and muscularis propria fibrosis, with endothelial preservation. CONCLUSIONS: External radiation is associated with acquired microvascular endothelial dysfunction and "web" formation in the small bowel.- - - - - - - - - - ranking = 4keywords = vessel (Clic here for more details about this article) |
10/28. Anomalous congenital band: a rare cause of intestinal obstruction and failure to thrive.intestinal obstruction caused by an anomalous congenital band is very rare in adults and children. A 7-year-old boy was admitted with acute intestinal obstruction. His parents mentioned that the child always had mild abdominal distention and failure to thrive from his infancy. On his medical history, there were not any attacks of abdominal pain, fever and hospitalization. laparotomy showed an ileal loop compressed by an anomalous band, which extended from the ileum to the sigmoid mesentery resembling a mesenteric remnant. The band was resected. Histologically, it was composed of loose connective tissue containing mature vessels.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
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