We reported a case of irreducible indirect inguinal hernia caused by sigmoid colon cancer entering the right groin.The patient complained about a right groin mass for more than 60 years with progressive enlargement for 3 years and pain for half a month.Abdominal CT examination at admission showed rectum and sigmoid colon hernia in the right inguinal area and thickening of sigmoid colon wall.Electronic colonoscopy and pathological diagnosis showed sigmoid colon cancer.Therefore,the result of preliminary diagnosis was irreducible indirect inguinal hernia caused by sigmoid colon cancer entering the right groin.We converted laparoscopic exploration to laparotomy followed by radical sigmoidectomy and employed end-to-end anastomosis of descending colon and rectum in combination with repair of right inguinal hernia.The patient recovered well after operation and was discharged.
Colon, Sigmoid/surgery* ; Groin ; Hernia, Inguinal/surgery* ; Humans ; Laparoscopy ; Sigmoid Neoplasms/surgery*

To evaluate the protection of proximal colon segment by analyzing blood supply disorder of proximal colon segment during laparoscopic proctosigmoidectomy(11 cases) in the Chaoyang Hospital of Capital Medical University. It is concluded that the disorder of blood supply of proximal colon segment during laparoscopic proctosigmoid surgery has two reasons. One is the anatomic factor of mesenteric vessels; the other is the inappropriate operative procedure. It is recommended that left colonic artery should be retained, and inferior mesenteric artery should be handled at a low level, thus, the risk of proximal intestine blood supply disorder caused by vascular anatomy variation can be reduced.
Colon, Sigmoid ; surgery ; Humans ; Laparoscopy ; methods ; Rectum ; surgery

Anastomosis, Surgical ; Colon, Sigmoid/surgery* ; Colorectal Neoplasms/surgery* ; Humans ; Robotics

Colon, Sigmoid/surgery* ; Colostomy ; Humans ; Ostomy ; Prolapse ; Surgical Stomas

Humans ; Colon, Sigmoid ; Hamartoma/surgery* ; Schwann Cells ; Mucous Membrane

Laparoscopic sigmoidectomy for cancer is considered as a simple surgical approach, which is suitable for primary laparoscopic surgery. However, the success of laparoscopic sigmoidectomy is closely related to the anatomical characteristics of the sigmoid colon. The length, adhesion and morphology of the sigmoid colon vary greatly. The differences of the length, width, adhesion and morphology of the mesentery are large. The distribution of vessels is diversified. The high ligation or the low ligation is still controversial. The location of the sigmoid colon cancer is also not constant. These problems have great influence on the operation. Before operation, the tumor must be accurately located and the anatomical characteristics of the sigmoid colon must be fully evaluated. The operation can be carried out smoothly and the complications during and after the operation can be reduced.
Colectomy ; Colon, Sigmoid ; anatomy & histology ; Humans ; Laparoscopy ; methods ; Sigmoid Neoplasms ; surgery ; Treatment Outcome

Adult ; Colon, Sigmoid ; surgery ; Female ; Humans ; Laparoscopy ; methods ; Rectum ; surgery ; Surgically-Created Structures ; Vagina ; abnormalities ; surgery

PURPOSE: The aim of the present study was to evaluate the usefulness of indocyanine green (ICG) as a preoperative marking dye for laparoscopic colorectal surgery. METHODS: Between March 2013 and March 2015, 174 patients underwent preoperative colonoscopic tattooing using 1.0 to 1.5 mL of ICG and saline solution before laparoscopic colorectal surgery. Patients’ medical records and operation videos were retrospectively assessed to evaluate the visibility, duration, and adverse effects of tattooing. RESULTS: The mean age of the patients was 65 years (range, 34–82 years), and 63.2% of the patients were male. The median interval between tattooing and operation was 1.0 day (range, 0–14 days). Tattoos placed within 2 days of surgery were visualized intraoperatively more frequently than those placed at an earlier date (95% vs. 40%, respectively, P < 0.001). For tattoos placed within 2 days before surgery, the visualization rates by tattoo site were 98.6% (134 of 136) from the ascending colon to the sigmoid colon. The visualization rates at the rectosigmoid colon and rectum were 84% (21 of 25) and 81.3% (13 of 16), respectively (P < 0.001). No complications related to preoperative ICG tattooing occurred. CONCLUSION: Endoscopic ICG tattooing is more useful for the preoperative localization of colonic lesions than it is for rectal lesions and should be performed within 2 days before laparoscopic surgery.
Colon ; Colon, Ascending ; Colon, Sigmoid ; Colorectal Surgery* ; Humans ; Indocyanine Green* ; Laparoscopy ; Male ; Medical Records ; Rectum ; Retrospective Studies ; Sodium Chloride ; Tattooing*

PURPOSE: To analyze the relative position of the mandibular foramina (MnFs) in patients diagnosed with skeletal class III malocclusion. MATERIALS AND METHODS: Computed tomography (CT) images were collected from 85 patients. The vertical lengths of each anatomic point from the five horizontal planes passing through the MnF were measured at the coronoid process, sigmoid notch, condyle, and the gonion. The distance from the anterior ramus point to the posterior ramus point on the five horizontal planes was designated the anteroposterior horizontal distance of the ramus for each plane. The perpendicular distance from each anterior ramus point to each vertical plane through the MnF was designated the horizontal distance from the anterior ramus to the MnF. The horizontal and vertical positions were examined by regression analysis. RESULTS: Regression analysis showed the heights of the coronoid process, sigmoid notch, and condyle for the five horizontal planes were significantly related to the height of the MnF, with the highest significance associated with the MnF-mandibular plane (coefficients of determination (R2): 0.424, 0.597, and 0.604, respectively). The horizontal anteroposterior length of the ramus and the distance from the anterior ramus point to the MnF were significant by regression analysis. CONCLUSION: The relative position of the MnF was significantly related to the vertical heights of the sigmoid notch, coronoid process, and condyle as well as to the horizontal anteroposterior length of the ascending ramus. These findings should be clinically useful for patients with skeletal class III mandibular prognathism.
Colon, Sigmoid ; Humans ; Imaging, Three-Dimensional ; Malocclusion ; Mandibular Nerve ; Mandibular Osteotomy ; Prognathism* ; Surgery, Computer-Assisted

Self-expandable metallic stents are widely used to relieve acute colorectal obstruction that's secondary to malignancy. They are utilized for both palliation and preoperative decompression prior to colorectal surgery. Although stents have been documented as a relatively safe therapeutic modality, procedure-related complications such as perforation, bleeding, stent reobstruction and migration can occur during or after colonic stent placement. Therefore, clinicians must be aware of the various complications associated with colonic stent placement. We present here a very rare case of sigmoidorectal intussusception that developed after fluoroscopic placement of a self-expandable metallic stent for preoperative decompression of sigmoid colon cancer. We misdiagnosed the intussusception as a distal stent migration on the plain radiography. On the sigmoidoscopic examination to evaluate the unrelieved colonic obstruction, we diagnosed a sigmoidorectal intussusception of the stent-implanted malignant tumor. The patient was successfully treated by laparoscopic partial reduction, followed by a curative anterior resection. This case demonstrates that careful examination must be done in cases of unrelieved colonic obstruction with suspicious stent migration, and intussusception must be considered as a rare complication of self-expandable metallic stent placement in the colon.
Colon ; Colonic Neoplasms ; Colorectal Surgery ; Decompression ; Hemorrhage ; Humans ; Intussusception ; Sigmoid Neoplasms ; Stents