OBJECTIVE: The incidence of cancer colon has increased dramatically. In addition, the database lacks a review to analyze the outcomes of surgeries for mid-transverse colon cancer with several recent controversial studies. We aimed to compare the outcomes of extended hemicolectomy versus transverse colectomy for mid-transverse colon cancer.
METHODS: PubMed, Scopes, Web of Science and Cochrane Library were searched for eligible studies from inception to 1 December 2022 and a systematic review and meta-analysis were done to detect.
RESULTS: According to eligibility criteria, 8 studies (2237 patients) were included in our study. The pooled results of the included studies showed no difference in the 5-year OS, 3-year DFS and 5-year DFS between the two types of surgery (5-year OS, RR = 1.15, 95% CI 0.94-1.39, P = 0.17), (3-year OS, RR = 0.96, 95% CI 0.88-1.06, P = 0.42) and (5-year DFS, RR = 1.21, 95% CI 0.91-1.62, P = 0.20). In addition to that, the recurrence rate and the incidence of complications were similar in the two groups (Recurrence rate, RR = 1.08, 95% CI 0.62-1.89, P = 0.79) and (Complications, RR = 1.07, 95% CI 0.74-1.54, P = 0.72). However, the number of LN harvest and the time of the operation were more in case of extended hemicolectomy.
CONCLUSIONS: Despite harvesting less LN, transverse colectomy has similar oncological outcomes to extended hemicolectomy for mid-transverse colon cancer. In addition to that, there was no significant difference in the incidence of complications between the two surgeries.

UNASSIGNED: Bowel obstruction is a mechanical or functional blockade of intestinal contents from evacuation to the adjacent distal bowel or external environment. Cecal volvulus is the twisting of distal ileum, cecum and ascending colon on their mesentery. Transverse colon volvulus is another rare cause of large bowel obstruction even less prevalent than cecal volvulus. Colectomy with decompression stoma is the widely practice of intervention in cecal or transverse colon volvulus.
METHODS: A 45 years-old male patient presented to our center with failure to pass feces and flatus of 5 days duration. He also had crampy abdominal pain, abdominal distention and vomiting of ingested matter. Vital signs were normal except mild tachycardia. He had distended non-tender abdomen, hyperactive bowel sound and hyper-tympanic percussion. However, there was no sign of fluid collection of abdominal or rectal mass. Plain abdominal X-ray showed distended large bowel loops with multiple air fluid levels. Exploratory laparotomy revealed simultaneous cecal and transverse colon clockwise volvulus 270 degrees on their mesentery.
CONCLUSIONS: Mechanical bowel obstruction is major cause of surgical admission in both developed and developing countries. Anatomic and congenital factors play significant role in both transverse colon and cecal volvulus. Endoscopic decompression in the case of cecal and transverse colon volvulus is less probable and not recommended.
CONCLUSIONS: Simultaneous cecal and transverse colon volvulus is an extremely rare occasion where there is no report in the history of literatures to date. Management involves extended right hemicolectomy with proximal diversion and distal mucus fistula.

Transverse colon cancer (TCC) is poorly studied, and TCC cases are often excluded from large prospective randomized trials because of their complexity and their potentially high complication rate. The best surgical approach for TCC has yet to be established. The aim of this large retrospective multicenter Italian series is to investigate the advantages and disadvantages of both hemicolectomy and transverse colectomy in order to identify the best surgical approach.
This was a retrospective cohort study of patients with mid-transverse colon cancer treated with a segmental colon resection or an extended hemicolectomy (right or left) between 2006 and 2016 in 28 high-volume (more than 70 procedures/year) Italian referral centers for colorectal surgery.
The study included 1529 patients, 388 of whom underwent a segmental resection while 1141 underwent an extended resection. A higher number of complications has been reported in the segmental group than in the extended group (30.1% versus 23.6%; p 0.010). In 42 cases the main complication was the anastomotic leak (4.4% versus 2.2%; p 0.020). Recovery outcomes also showed statistical differences: time to first flatus (p 0.014), time to first mobilization (p 0.040), and overall hospital stay (p < 0.001) were significantly shorter in the extended group. Even if overall survival were similar between the groups (95.1% versus 97%; p 0.384), 3-year disease-free survival worsened after segmental resection (78.1% versus 86.2%; p 0.001).
According to our results, an extended right colon resection for TCC seems to be surgically safer and more oncologically valid.