Kazuya Maeda

DESMOID TUMOR OF THE CHEST WALL FOLLOWING CHEST SURGERY : REPORT OF A CASE

Desmoid tumors of the chest wall following chest surgery are a rare occurrence. A case of this disease is reported herein together with a review of the literature. A 74-year-old man, who had previously undergone a right lower lobectomy for squamous cell carcinoma of the lung, was referred to our hospital with an abnormal shadow on his chest X-ray. The tumor, located in the right lateral chest wall, was successfully resected by an aggressive, wide extirpation, and a final diagnosis of a desmoid tumor originating in the chest wall was made. When following up patients after surgery for lung cancer, the possibility of desmoid tumors developing in the incised chest wall should therefore be kept in mind.

Hybrid single-incision laparoscopic sigmoidectomy: the effective use of small incision.

AIM Single-incision laparoscopic colectomy (SILC) often requires steeper Trendelenburg positioning to displace or keep the small intestine away from the operative site. We have developed hybrid SILC in which we make a transumbilical incision to extract the specimen first and utilize a multiflap gate (MFG). METHODS MFG was inserted through a 4.0-cm transumbilical incision, and a surgical towel was inserted via MFG and displaced the small intestine away from the operative site. Three 5-mm ports were placed in the converter sheet. Almost all the operative procedures were the same as usual laparoscopic sigmoidectomy. In the course of laparoscopic procedures, whenever we felt stress, we used the techniques of open surgery via MFG. RESULTS In 3 patients, the procedure was successfully completed without any complications. CONCLUSIONS Our procedure can be easily performed, which enables surgeons to achieve SILC safe and easy compared with conventional technique.

Laparoscopic Surgery for the Ascending Colon Cancer Associated with Malrotation of the Midgut

Malrotation of the midgut is a congenital anomaly of the gastrointestinal tract that usually presents in neonates. Moreover, synchronous colon cancer has rarely been reported. In the present article, we report a preliminary experience with laparoscopic approach for intestinal malrotation with early colon cancer in a 68-year-old woman who presented with bloody stools. Colonoscopy revealed a lateral spreading tumor of the ascending colon. An air-barium contrast enema showed that the entire colon lay within the left hemiabdomen. A computed tomography revealed the superior mesenteric vein rotation sign. At surgery, a condition of malrotation of the midgut was observed: the third and the fourth part of the duodenum descended vertically without Treitz’s ligament, and the small bowel and colon were located in the right and left side of the abdominal cavity, respectively. We mobilized the terminal ileum and the right colon with laparoscopic approach. A 3-cm abdominal incision was made via the umbilicus. Right colectomy with lymph node dissection was achieved following extracorporealization. Pathological examination revealed well-differentiated tubular adenocarcinoma without nodal involvement. The patient had an uneventful postoperative course. Laparoscopic surgery for colon cancer associated with malrotation of the midgut is feasible and a promising method because of its less invasiveness and its adaptability to the malrotation without extending the skin incision.

the outcome of single-incision laparoscopic right colectomy for colon carcinoma in the elderly.

Purpose: Surgeons are increasingly being faced with the problem of treating elderly colon cancer patients. The purpose of this study was to elucidate the feasibility of single-incision laparoscopic surgery for these patients. Methods: Among 34 right colon cancer patients treated with single-incision laparoscopic surgery procedure between August 2010 and September 2011, 9 (26.5%) were aged 80 or over. The results of treatment in this elderly group were compared retrospectively with those in 10 younger colon cancer patients (age, 59 to 67 y; control group, 29.5%). Results: The sex distribution, body mass index, and the tumor location were similar between the groups. The elderly had a higher incidence of preoperative risk factors (77.7% vs. 40.0%; P=0.17). However, operative time and estimated blood loss were similar and postoperative complications had not occurred in both groups. Conclusions: We believe that single-incision laparoscopic colectomy can be carried out safely in elderly patients with colon cancer.

Preoperative diagnosis of the sclerosed hemangioma of the liver using multimodality imaging findings: A case report

A sclerosed hemangioma of the liver is a rare benign lesion characterized by fibrosis and hyalinization of a hepatic cavernous hemangioma as a result of degeneration. This condition has been difficult to correctly diagnose with imaging. Our patient was a 57-year-old man whose computed tomography (CT) scan showed a mass of 45 mm in diameter in the lateral segment. On dynamic contrast-enhanced CT, the lesion was found to comprise peripheral, gradual, and heterogeneous enhanced areas with a central nonenhanced area; malignancy was suspected. On magnetic resonance imaging, the peripheral area showed slight hperintensity on T2-weighted image, and showed a similar intensity on T1- and diffusion-weighted images as compared to the background liver and gradual enhancement, and the presence of abundant fibrous tissue was suspected. Conversely, the central area showed remarkable hyperintensity on T2-weighted images and no enhancement, and degeneration or hyalinization was suspected. The mass showed no uptake of fluorine-18 fludeoxyglucose (FDG). Some imaging findings suspected a benign tumor, and sclerosed hemangioma with abundant fibrosis and hyalinization was pathologically confirmed. Herein, we report a case of sclerosed hemangioma focusing on possible preoperative diagnosis using a combination of multimodality imaging findings—diffusion-weighted imaging and FDG-positron emission tomography imaging.