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Laparoscopic Right Hemicolectomy for Right Colon Cancer
Published in Haribhakti Sanjiv, Laparoscopic Colorectal Surgery, 2020
Harshad Soni, Jitender Singh Chauhan
Extended right hemicolectomy is commonly performed for malignant disease of the hepatic flexure and the proximal transverse colon. When the dissection extends up to the mid-transverse region, then the right branch of the middle colic vessels is also dissected up to the root of the mesocolon along with all lymph nodes [1].
Introduction
Published in Shayne C. Gad, Toxicology of the Gastrointestinal Tract, 2018
The large intestine, which is about 1.5 m long and 6.5 cm in diameter, extends from the ileum to the anus. It is attached to the posterior abdominal wall by its mesocolon, which is a double layer of peritoneum. Structurally, the four major regions of the large intestine are the cecum, colon, rectum, and anal canal.
The development and anatomy of the female sexual organs and pelvis
Published in Helen Bickerstaff, Louise C Kenny, Gynaecology, 2017
This artery is the continuation of the inferior mesenteric artery and descends in the base of the mesocolon. It divides into two branches that run on either side of the rectum and supply numerous branches to it.
Adrenocortical carcinoma arising from the colonic mesentery
Published in Baylor University Medical Center Proceedings, 2022
Samuel Z. See, Sinan Ali Bana, Nuvaira Ather, Amy Haberman
A 57-year-old woman presented to the emergency department with a 2-week history of left-sided abdominal pain. Physical examination demonstrated tenderness to palpation in the left upper quadrant. Laboratory findings were consistent with anemia of chronic disease. Computed tomography (CT) of the abdomen and pelvis showed a large retroperitoneal mass within the left hemiabdomen (Figure 1). Surgical excision showed a large mobile mass in the left upper quadrant attached to the colonic mesocolon and distinct from adjacent solid organs. Gross pathology demonstrated a 459 g, 11 cm lobulated yellow mass with a red rubbery outer surface and diffuse hemorrhage. Microscopy showed a hypercellular tumor composed of round to ovoid cells with focally microcystic patterns (Figure 2). The tumor cells showed uniform nuclei with vesicular chromatin and scant pale to amphophilic cytoplasm. Marked mitoses (up to 24 per 50 high-power fields), patchy tumor necrosis, focal capsular invasion, and vascular invasion were present with an overall Modified Weiss Criteria score of 5. Immunohistochemistry was positive for Melan-A, inhibin, synaptophysin, Cam 5.2, calretinin, and S100 and negative for chromogranin. Histopathologic findings were overall consistent with ACC. Magnetic resonance imaging (MRI) of the abdomen performed 6 months postoperatively showed new lesions in the liver concerning for metastases (Figure 3). Subsequent partial hepatic lobectomy was performed with histopathologic findings consistent with metastatic ACC. The patient is currently under close monitoring with serial imaging.
Peritoneal dialysis catheter malfunction caused by wrapping of the catheter by the sigmoid mesocolon: a case report
Published in Renal Failure, 2021
To the best of our knowledge, this is the first case which reported that sigmoid mesocolon is the cause of complete obstruction of a Tenckhoff catheter. There was no history of constipation or vomiting. The patient has a bad habit of discharging fluid for a long time. We found that the patient had a large sigmoid mesocolon observed by the surgical video. We hypothesize that, under the influence of the negative pressure of outflow, the sigmoid mesocolon was pulled toward the external wall of the catheter, occluding the side ports and thus preventing dialysate outflow. The anti-adhesion drugs were applied locally in the diagnostic laparoscopy, and the free sigmoid mesocolon was fixed with Hem-o-lok clips. Unfortunately, the catheter failed again. This case shows that when the PD catheter malfunction is encountered, one should not ignore the possibility of obstruction by the sigmoid mesocolon.
Transmesenteric hernia: a rare case of acute abdominal pain in children: a case report and review of the literature
Published in Acta Chirurgica Belgica, 2018
Edward Willems, Bart Willaert, Sam Van Slycke
Rokitansky first reported a transmesenteric herniation in 1836. He described the herniation of the caecum alone through a hole in the mesentery near the ileocolic junction at a post-mortem examination [5,8]. In 1885, Treves described an area in the mesentery near the ileocaecal angle circumscribed by the ileocolic artery and its anastomosis with the terminal branch of the ileal artery. This area was later named Treves’ field correspondingly. He noted that this mesenterial area contained no blood vessels, no fat and no mesenterial glands, hypothesizing that it is therefore very prone to injury during fetal development. Subsequently, a congenital defect in the mesentery can develop through which the intestine might herniate. Treves described these defects to be round to oval-shaped with a diameter of 2–3 cm and a thickened margin [2,9,10]. Congenital defects in the mesentery have also been found in other areas of the mesentery, yet they occur most commonly in parts of the mesentery that are thin and avascular, such as in the mesentery of the terminal ileum and the sigmoid and transverse mesocolon [4,6,11].