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At least 271 records · Page 15Linked to original sources
PubMed1992

The gastrocolic trunk and its tributaries: CT evaluation.

Dilatation or occlusion of the gastrocolic trunk (GT) may be a clue to a portal venous or pancreatic pathologic condition. To evaluate the normal and abnormal appearances of the GT and its tributaries at computed tomography (CT), the CT scans, angiograms, and surgical-pathologic records of 21 patients with cancer of the pancreas and 15 patients with chronic pancreatitis were reviewed retrospectively. The CT examinations of 30 patients with metastatic disease of the liver and no known pancreatic disease were studied for comparison. A normal GT (2.6-4.7-mm diameter) was identifiable in 48% of the control group in CT scans obtained with 10-mm-thick sections and in 90% of CT scans obtained with 5-mm-thick sections. The GT was dilated in five patients with isolated splenic vein occlusion and in five patients with occlusion or stenosis of the portal-superior mesenteric vein confluence (P-SMVC) above the level of the GT entry into the superior mesenteric vein. The GT was obliterated in eight patients and was associated with P-SMVC occlusion. Findings at surgery confirmed tumor extension into the root of the transverse mesocolon in three patients with cancer of the pancreas. Abnormal findings at CT, however, do not enable differentiation between benign and malignant pancreatic diseases.

Chronic Disease↗
PubMed1993

Diffuse leiomyomatosis of the uterus with local pelvic spread.

The clinical and pathological findings of a case of diffuse leiomyomatosis of the uterus are described. The unique feature of this case is the extension of the disease process to the pelvic mesocolon. The diagnostic difficulties encountered in the histological assessment of smooth muscle tumors of the uterus are discussed.

Adult↗
PubMed1997

A case of extragastrointestinal anisakiasis involving a mesocolic lymph node.

In a 43-year-old Korean man who underwent radical gastrectomy due to a malignant stromal tumor, was found to have an enlarged lymph node at transverse mesocolon. The lymph node exhibited histologically necrotizing eosinophilic granuloma formed around a track containing sections of a nematode larva. The well preserved nematode sections revealed polymyarian muscle cells, Y-shaped lateral cord, a large excretory gland cell, intestine and eosinophilic cuticle. The nematode sections were identified as a larva of Anisakis species. In Korea, this is the first case of extragastrointestinal anisakiasis.

Adult↗
PubMed1976

Observations on some additional abnormalities in situs inversus viscerum.

The abnormal findings in a case of Situs inversus totalis are described. The duodenum was placed abnormally and retained its primitive mesentery. The proximal 22 in of jejunum were retroperitoneal. The attachment of the root of the mesentery to the posterior abdominal wall had a 7-shaped appearance, and there was a partial failure of the primitive mesocolon to adhere to the posterior abdominal wall. The common hepatic artery arose from the superior meseneric artery, which also provided a branch to the proximal jejunal loop. The right vagus nerve was found anterior to the oesophagus at the oesophageal hiatus in the diaphragm, and the left vagus was posterior. A double ureter was present on the right side. The findings are discussed in relation to mid-gut development.

Aged↗
PubMed1999

[Clinical-diagnostic and therapeutic considerations in a rare case of mesenteric cyst].

The authors report a rare case of mesenteric cyst in a 36 years old woman. These cysts have a pathogenesis that primarily may be ectopic lymphatic tissue and their most common site is in the small bowel mesentery, especially of the ileum. In the case reported the cyst was located in the right mesocolon. Mesenteric cysts can appear as chronic abdominal pain, a painless abdominal mass, or acute abdomen. Diagnostic aids include abdominal computed tomography and sonography, that usually make diagnosis of mesenteric cyst. Treatment of choice is enucleation; resection of the adjacent bowel may occasionally be necessary.

Adult↗
PubMed1956

Malfunctioning postgastrectomy stoma; diagnosis and treatment.

Individualization in the treatment of patients with malfunctioning gastrojejunostomy stomas is paramount. Prompt surgical intervention in critically ill patients is necessary to save life. In the early postoperative phase, the use of barium studies is disappointing and very seldom gives information as to the actual site of the obstruction. In surgical treatment, operation directly upon the stoma should be avoided as much as possible. The release of small bowel obstruction, the reduction of intussusception or the correction of retraction of the jejunum through the mesocolon can be accomplished readily. Double or single jejunostomy for feeding and decompression are all that is necessary in cases in which no cause can be found for obstruction at or below the stoma. In a patient with peptic ulcer, the use of enteroenterostomy below the stoma is unphysiological and will predispose to gastrojejunal ulcer at a later date.

Gastric Bypass↗
PubMed2004

Peritonitis caused by a ruptured, infected mesenteric cyst initially interpreted as an ovarian cyst. A case report.

BACKGROUND: Mesenteric cysts are rare intraabdominal lesions of childhood that may vary in presentation from an asymptomatic mass to an acute abdomen. CASE: We encountered a rare case of peritonitis caused by a ruptured, infected mesenteric cyst of the mesocolon in a female child that had been initially interpreted as a ruptured ovarian cyst. CONCLUSION: When confronted with a large unilocular or septated echolucent mass in the lower abdomen in female children, gynecologists should consider a mesenteric cyst in the differential diagnosis.

Child, Preschool↗
PubMed2005

Primary intraabdominal synovial sarcoma: a case report.

The authors report a case of intra-abdominal synovial sarcoma in a 41-year-old female. The tumor, which had an unusual location, the ascending mesocolon, had a mono-phasic spindle cell pattern. Immunohistochemical positivity for the epithelial membrane antigen (EMA) and cytokeratin AE1/AE3 differentiated the lesion from other spindle cell sarcomas with similar histology. The pathological and clinical features of the entity are briefly discussed.

Adult↗
PubMed1989

[Methods of suppression of adrenal hyperfunction].

Evolution of the methods for suppression of adrenal hyperfunction has now made it possible to give up bilateral adrenalectomy in favour of portalization of the adrenal blood flow from the left adrenal by its autotransplantation with maintained blood supply into the transverse mesocolon and cryodestruction of the right adrenal. Analysis of the mortality showed two-stage suppression of adrenal hyperfunction to be advisable.

Adrenal Glands↗
PubMed1979

[Rare case of intestinal malrotation: duodenal-jejunal stenosis caused by ileal hyperrotation (180 degrees) in a newborn (author's transl)].

The authors present a case of intestinal malrotation characterized by a hyperotation of ileal loops (180 degrees) causing a stenosis of the duodenal-jejunal junction. Some ileal loops were situated, through a defect of the ascendent mesocolon, behind the ascendent colon. The difference between the ileal volvulus and this malformation is: 1. There was no vascular sufference of hyperrotated ileum. 2. The ileal loops were fixed in that hyperrotated position. 3. Some loops were located behind the colon ascendent. 4. After the derotation of ileal loops the stenosis at the duodenal-jejunal level persisted and we proceded to surgery of the stenotic point.

Duodenal Obstruction↗
PubMedDate not supplied

[Rare abdominal and peritoneal localizations of hydatid cysts. Report on two cases (author's transl)].

Rarely observed isolated peritoneal hydatid cysts, without initial hepatic lesions or later development in other viscera, were detected in two patients. The diagnosis of hydatidosis confined to the mesocolon was established pre-operatively in the first case, enabling mebendazole treatment to be instituted. In the second case, however, pre-operative diagnosis was not possible, demonstrating the sometimes misleading appearances found in this affection. Aetiopathogenic and diagnostic features are briefly discussed. Therapy raises problems, and though good results have recently been obtained with benzimidazole derivatives, surgical excision in currently the only curative treatment available. Medical treatment (with benzimidazole derivatives) is indicated only in cases with multiple cysts inaccessible to surgery, or a complementary therapy to facilitate excision, reduce risks of propagation during operation, and prevent recurrences.

Echinococcosis↗
PubMed1994

Purulently infected abdominal aortic aneurysm: in situ reconstruction with transmesocolic omental transposition technique.

A new omental transposition technique was applied to a patient who underwent resection and in situ reconstruction of purulently infected abdominal aortic aneurysm to prevent recurrent retroperitoneal and graft infection. After wide separation from the transverse colon, the omental pedicle was transposed to the infrarenal retroperitoneal space through an opening of the transverse mesocolon to wrap the prosthetic graft and fill the infected space. The postoperative course was uneventful without any sign of recurrent infection in follow-up lasting 8 months. The authors' experience suggest that this 'transmesocolic' technique is an effective modality for critically ill patients with infected abdominal aorta.

Aged↗
PubMed1998

[Continent urinary diversion using a tubulized sigmoid segment. An alternative to trans-appendicular diversion].

OBJECTIVE: The authors propose the use of a sigmoid tube reimplanted submucosally in the bladder and brought out onto the skin in the midline or in the umbilicus as a method of continent urinary diversion allowing urinary catheterization several times a day when the appendix cannot be used. MATERIALS AND METHODS: Three adolescents with neurogenic bladder were treated according to this procedure; the summit of the sigmoid colon loop was selected to form a continent tube from a segment 4 cm wide, opened along its antimesenteric border and sutured longitudinally. RESULTS: The postoperative course was uneventful in all 3 cases. The cystostomy was continent. Catheterizations were easily performed. CONCLUSION: Creation of a sigmoid tube is an alternative to the use of the appendix for continent urinary diversion according to Mitrofanoff's procedure. This technique can always be performed due to the proximity of the sigmoid colon and bladder, which is not always the case with the appendix. This tube is richly vascularized and presents the advantage of a very narrow mesocolon which does not interfere with creation of the intravesical submucosal tunnel.

Abdomen↗
PubMed2005

Anastomosis of Riolan revisited: the meandering mesenteric artery.

The eponym anastomosis of Riolan suggests that Jean Riolan (1580-1657), a famous 17th century French anatomist, was the first to describe this mesenteric arterial connection between the superior and inferior mesenteric arteries. Riolan was a strong defender of traditional Galenic doctrine in medicine and proved a vigorous opponent of the new concept of the circulation of blood as exposed by William Harvey (1578-1657). As confirmed by examining his anatomy book published in 1649, it is unlikely that Riolan would have conceived an arterial collateral pathway in the mesocolon. He probably had observed vascular arcades running along the inner border of the colon. It was not until 1743 that Albrecht von Haller (1708-1777) gave a detailed description of the anatomy of the mesenteric arteries, referring to the arterial collateral connection between the superior and inferior mesenteric arteries as the Arcus Riolani in honor of an old master of anatomy.

Collateral Circulation↗
PubMed1977

Leiomyomatosis of the colon.

Excluding the rectum, smooth muscle cell tumors of the large bowel are extremely rare lesions. A unique case is reported of an infiltrating multinodular myomatous growth of semi-constrictive type affecting the ascending and transverse colon along its entire circumference and over a length of 35 cm. In the mesocolon near the colonic wall two tumor foci were present. Contrary to expectations from the growth behavior, histological examination revealed well differentiated smooth muscle cells with distinct myofilaments and absence of nuclear abnormalities and mitotic figures. No clinical evidence of malignancy was found and no recurrence was detected during a 39-month follow-up period which included a second-look operation. The contrasting fidings are discussed and it is concluded that the tumor should be considered a benign multicentric lesion, for which the term "leiomyomatosis of the colon" is suggested.

Adult↗
PubMed1991

Intraoperative localization of colorectal cancers using radiolabelled monoclonal antibodies.

Radiation detectors may allow the intraoperative localization of small cancer deposits following administration of radiolabelled tumour-associated antibodies. This technique was evaluated in 16 patients with colorectal tumours (14 cancers, one adenoma, one lipoma) with the 111In-labelled monoclonal antibody (MAb) ICR2 which recognizes the tumour-associated epithelial membrane antigen (EMA). At operation counting was carried out (3 x 20 s per site) using a hand-held radiation probe over the primary lesions and any palpable lymph nodes in the mesocolon. The tumour to normal colon (T/NC) ratio of counts recorded at operation was more than 1.5:1 in eight of the 14 patients with cancer (mean(s.d.), 1.54(0.41):1) and 0.91:1 and 1.06:1 respectively in the two patients with benign tumours. Node to normal colon ratios were higher in lymph nodes containing metastases. The uptake of radiolabelled antibody (T/NC ratio) was higher in EMA-expressing cancers than in those not expressing the target antigen (mean(s.d.), 2.45(0.65):1 versus 1.40(0.20):1, P = 0.019). An abdominal tumour model was also developed. Radioactively filled containers of 0.5-10 ml representing tumour deposits were suspended in a tank of 111In solution representing the background activity found in normal tissues. The ratio of radioactivity in the 'tumour' to that of background varied from 2:1 to 8:1. The 'tumour' was considered to be detectable if the mean counts recorded over the 'tumour' exceeded the mean of counts recorded over background by three standard deviations. At a ratio of 2:1 only 'tumours' greater than 5 ml could be detected with a sodium iodide probe and those over 10 ml could be detected with a cadmium telluride (CdTe) probe. At a ratio of 8:1, 'tumours' of 0.5 ml could be detected with either probe. At all ratios and counting periods the NaI probe was more sensitive than the CdTe.

Aged↗
PubMed2006

Anatomy of the sigmoid colon, rectum, and the rectovaginal pouch in women with enterocele and anterior rectal wall procidentia.

This study describes the anatomy of the rectovaginal pouch, the sigmoid colon, and rectum in women with posterior enterocele and anterior rectal wall procidentia. The anatomy of rectovaginal pouch, sigmoid colon, and rectum was described in 36 women with an enterocele (group A) and compared with those of 43 women (group B) without pelvic organ prolapse. Women with previous incontinence or prolapse surgery were excluded. The mean age in group A was 58 years (40-75) and in group B 35 years (19-64; P < 0.001). There were 15 nulliparas in group B. Nine women in group A had an internal anterior rectal wall procidentia, and one woman had an external anterior rectal wall procidentia. In group A, the rectovaginal pouch was significantly deeper, the sigmoid mesocolon at S1 shorter and showed more often a straight course (P < 0.05). These characteristics (termed "grande fosse pelvienne") were present in 23 women (64%) in group A and in 6 (14%) in group B, three of the latter were young nulliparas (P < 0.001). Age, parity, menopausal status, body mass index, constipation, and varicose veins were not associated with a grande fosse pelvienne. The typical anatomy in women with an enterocele and anterior rectal wall procidentia was a sigmoid colon with a straight course and a short mesentery at S1 and a rectovaginal pouch that covered more than half of the vaginal length. It may be a congenital condition and important in the development of an enterocele and rectal wall procidentia.

Adult↗