The Experts below are selected from a list of 6549 Experts worldwide ranked by ideXlab platform
V. Maheshwari - One of the best experts on this subject based on the ideXlab platform.
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Internal hernia through the descending Mesocolon following left radical nephrectomy—a rare complication: case report and review of the literature
Hernia, 2012Co-Authors: A. Kumar, V. Trehan, T. S. Ramakrishnan, V. MaheshwariAbstract:The causes for internal hernias can be broadly classified as congenital or acquired, the latter being caused by post surgical or traumatic defects. An internal hernia following nephrectomy is a relatively rare occurrence. A nephrectomy via the transperitoneal approach has complications which are common to any abdominal surgery, as well as some which are specific to it. However, an internal hernia through the descending Mesocolon is rare, and, to the best of our knowledge, very few cases have been reported in the literature. We report a case of internal hernia through the descending Mesocolon following left radical nephrectomy, review the available literature on this observation and discuss its pathogenesis and prevention.
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internal hernia through the descending Mesocolon following left radical nephrectomy a rare complication case report and review of the literature
Hernia, 2012Co-Authors: A. Kumar, V. Trehan, T. S. Ramakrishnan, V. MaheshwariAbstract:The causes for internal hernias can be broadly classified as congenital or acquired, the latter being caused by post surgical or traumatic defects. An internal hernia following nephrectomy is a relatively rare occurrence. A nephrectomy via the transperitoneal approach has complications which are common to any abdominal surgery, as well as some which are specific to it. However, an internal hernia through the descending Mesocolon is rare, and, to the best of our knowledge, very few cases have been reported in the literature. We report a case of internal hernia through the descending Mesocolon following left radical nephrectomy, review the available literature on this observation and discuss its pathogenesis and prevention.
Swapna Kamal Sengupta - One of the best experts on this subject based on the ideXlab platform.
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49. Solitary fibrous tumour of transverse Mesocolon: An unusual location
Pathology, 2015Co-Authors: Adam Scarlett, Ross Stillwell, David Deutscher, Swapna Kamal SenguptaAbstract:Solitary fibrous tumours are rare spindle cell mesenchymal neoplasms, most develop in the pleura. It has been described at unusual sites including orbit, peritoneum, mediastinum, lung, liver and spinal nerve rootlets. Its occurrence in mesentery is exceptionally rare. We describe here a case of SFT originating in transverse Mesocolon. A 55 year old woman presented with a painless abdominal mass which was discovered on routine examination. At laparotomy, the mass was found to arise from the transverse Mesocolon. It was globoid, solid, firm, 170 mm in diameter with a heterogeneous yellow-tan cut surface. It was easily shelled out without a surface breach. Histology showed an encapsulated, compact, spindle cell tumour with a bland nuclear morphology. Immunohistochemistry showed strong CD34 and betacatenin positivity of the spindle cells. It was also positive for CD99 and bcl2 and negative for CD117, s100, smooth muscle actin and epithelial markers, thus favouring this to be a solitary fibrous tumour. To our knowledge only one previous case of SFT in Mesocolon has been described in the literature. Prognosis of SFT is excellent in benign type with a very low recurrence rate. It is much more guarded in the malignant variety which has a very high recurrence rate with chance of metastasis.
Masao Tanaka - One of the best experts on this subject based on the ideXlab platform.
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Vascular anatomy of the transverse Mesocolon and bidirectional laparoscopic D3 lymph node dissection for patients with advanced transverse colon cancer
Surgical Endoscopy, 2019Co-Authors: Takashi Ueki, Masafumi Nakamura, Shuntato Nagai, Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Masao TanakaAbstract:Laparoscopic D3 lymph node dissection for transverse colon cancer is technically demanding because of complicated anatomy. Here, we reviewed the vascular structure of the transverse Mesocolon, explored the extent of the base of the transverse Mesocolon, and evaluated the feasibility and oncological safety of D3 lymph node dissection. We retrospectively reviewed the clinical records of 42 patients with advanced transverse colon cancer who underwent curative surgery and D3 dissection at Kyushu University Hospital between January 2008 and December 2015. We examined the venous and arterial anatomy of the transverse Mesocolon of each resection and compared surgical outcomes between patients who underwent laparoscopic D3 (Lap D3) and open D3 (Open D3) dissection. Patients included two with Stage I, 18 with Stage II, 20 with Stage III, and two with Stage IVA. Thirty-six (85.7%) and six (14.3%) patients underwent Lap D3 or Open D3, respectively. The tumor sizes of the Open D3 and Lap D3 groups were 7.8 and 3.7 cm, respectively ( P
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vascular anatomy of the transverse Mesocolon and bidirectional laparoscopic d3 lymph node dissection for patients with advanced transverse colon cancer
Surgical Endoscopy and Other Interventional Techniques, 2019Co-Authors: Takashi Ueki, Masafumi Nakamura, Shuntato Nagai, Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Masao TanakaAbstract:Laparoscopic D3 lymph node dissection for transverse colon cancer is technically demanding because of complicated anatomy. Here, we reviewed the vascular structure of the transverse Mesocolon, explored the extent of the base of the transverse Mesocolon, and evaluated the feasibility and oncological safety of D3 lymph node dissection. We retrospectively reviewed the clinical records of 42 patients with advanced transverse colon cancer who underwent curative surgery and D3 dissection at Kyushu University Hospital between January 2008 and December 2015. We examined the venous and arterial anatomy of the transverse Mesocolon of each resection and compared surgical outcomes between patients who underwent laparoscopic D3 (Lap D3) and open D3 (Open D3) dissection. Patients included two with Stage I, 18 with Stage II, 20 with Stage III, and two with Stage IVA. Thirty-six (85.7%) and six (14.3%) patients underwent Lap D3 or Open D3, respectively. The tumor sizes of the Open D3 and Lap D3 groups were 7.8 and 3.7 cm, respectively (P < 0.001). The Lap D3 group had significantly less blood loss (26 mL vs 272 mL, P = 0.002). The other outcomes of the two groups were not significantly different, including 3-year overall survival (87.7% vs 83.3%, P = 0.385). We observed four patterns of the middle colic artery (MCA) arising from the superior mesenteric artery (SMA), and the frequency of occurrence of a single MCA was 64.3%. The right-middle colic vein (MCV) was present in 92.9% of resections and served as a tributary of the gastrocolic trunk, and 90.5% of the left MCVs drained into the superior mesenteric vein (SMV). The root of the transverse Mesocolon was broadly attached to the head of the pancreas and to the surfaces of the SMV and SMA. Laparoscopic D3 lymph node dissection may be tolerated by patients with advanced transverse colon cancer.
Masafumi Nakamura - One of the best experts on this subject based on the ideXlab platform.
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Vascular anatomy of the transverse Mesocolon and bidirectional laparoscopic D3 lymph node dissection for patients with advanced transverse colon cancer
Surgical Endoscopy, 2019Co-Authors: Takashi Ueki, Masafumi Nakamura, Shuntato Nagai, Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Masao TanakaAbstract:Laparoscopic D3 lymph node dissection for transverse colon cancer is technically demanding because of complicated anatomy. Here, we reviewed the vascular structure of the transverse Mesocolon, explored the extent of the base of the transverse Mesocolon, and evaluated the feasibility and oncological safety of D3 lymph node dissection. We retrospectively reviewed the clinical records of 42 patients with advanced transverse colon cancer who underwent curative surgery and D3 dissection at Kyushu University Hospital between January 2008 and December 2015. We examined the venous and arterial anatomy of the transverse Mesocolon of each resection and compared surgical outcomes between patients who underwent laparoscopic D3 (Lap D3) and open D3 (Open D3) dissection. Patients included two with Stage I, 18 with Stage II, 20 with Stage III, and two with Stage IVA. Thirty-six (85.7%) and six (14.3%) patients underwent Lap D3 or Open D3, respectively. The tumor sizes of the Open D3 and Lap D3 groups were 7.8 and 3.7 cm, respectively ( P
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vascular anatomy of the transverse Mesocolon and bidirectional laparoscopic d3 lymph node dissection for patients with advanced transverse colon cancer
Surgical Endoscopy and Other Interventional Techniques, 2019Co-Authors: Takashi Ueki, Masafumi Nakamura, Shuntato Nagai, Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Masao TanakaAbstract:Laparoscopic D3 lymph node dissection for transverse colon cancer is technically demanding because of complicated anatomy. Here, we reviewed the vascular structure of the transverse Mesocolon, explored the extent of the base of the transverse Mesocolon, and evaluated the feasibility and oncological safety of D3 lymph node dissection. We retrospectively reviewed the clinical records of 42 patients with advanced transverse colon cancer who underwent curative surgery and D3 dissection at Kyushu University Hospital between January 2008 and December 2015. We examined the venous and arterial anatomy of the transverse Mesocolon of each resection and compared surgical outcomes between patients who underwent laparoscopic D3 (Lap D3) and open D3 (Open D3) dissection. Patients included two with Stage I, 18 with Stage II, 20 with Stage III, and two with Stage IVA. Thirty-six (85.7%) and six (14.3%) patients underwent Lap D3 or Open D3, respectively. The tumor sizes of the Open D3 and Lap D3 groups were 7.8 and 3.7 cm, respectively (P < 0.001). The Lap D3 group had significantly less blood loss (26 mL vs 272 mL, P = 0.002). The other outcomes of the two groups were not significantly different, including 3-year overall survival (87.7% vs 83.3%, P = 0.385). We observed four patterns of the middle colic artery (MCA) arising from the superior mesenteric artery (SMA), and the frequency of occurrence of a single MCA was 64.3%. The right-middle colic vein (MCV) was present in 92.9% of resections and served as a tributary of the gastrocolic trunk, and 90.5% of the left MCVs drained into the superior mesenteric vein (SMV). The root of the transverse Mesocolon was broadly attached to the head of the pancreas and to the surfaces of the SMV and SMA. Laparoscopic D3 lymph node dissection may be tolerated by patients with advanced transverse colon cancer.
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Laparoscopic right hemicolectomy for ascending colon cancer with persistent Mesocolon.
World journal of gastroenterology, 2014Co-Authors: Atsushi Tsuruta, Akimasa Kawai, Yasuo Oka, Hideo Okumura, Hideo Matsumoto, Toshihiro Hirai, Masafumi NakamuraAbstract:Persistent ascending or descending Mesocolon is an embryological anomaly that occurs during the final process of intestinal development in organogenesis. Specifically, the primitive dorsal Mesocolon fails to fuse with the parietal peritoneum in the fifth month of gestation. Herein, we describe a case of ascending colon cancer with persistent ascending and descending Mesocolon treated by laparoscopic right hemicolectomy. Preoperative computed tomography imaging of the abdomen demonstrated that the descending colon shifted at the midline of the abdomen and the sigmoid colon was located under the ascending colon. The detailed preoperative imaging examination revealed malpositioning of the large intestine and aided in the procedural planning. Because persistent Mesocolon may result in the formation of abnormal adhesions, an accurate preoperative diagnosis is essential. We propose that it is important to consider this anomaly when making the preoperative imaging diagnosis to ensure a safe operation.
Takashi Ueki - One of the best experts on this subject based on the ideXlab platform.
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Vascular anatomy of the transverse Mesocolon and bidirectional laparoscopic D3 lymph node dissection for patients with advanced transverse colon cancer
Surgical Endoscopy, 2019Co-Authors: Takashi Ueki, Masafumi Nakamura, Shuntato Nagai, Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Masao TanakaAbstract:Laparoscopic D3 lymph node dissection for transverse colon cancer is technically demanding because of complicated anatomy. Here, we reviewed the vascular structure of the transverse Mesocolon, explored the extent of the base of the transverse Mesocolon, and evaluated the feasibility and oncological safety of D3 lymph node dissection. We retrospectively reviewed the clinical records of 42 patients with advanced transverse colon cancer who underwent curative surgery and D3 dissection at Kyushu University Hospital between January 2008 and December 2015. We examined the venous and arterial anatomy of the transverse Mesocolon of each resection and compared surgical outcomes between patients who underwent laparoscopic D3 (Lap D3) and open D3 (Open D3) dissection. Patients included two with Stage I, 18 with Stage II, 20 with Stage III, and two with Stage IVA. Thirty-six (85.7%) and six (14.3%) patients underwent Lap D3 or Open D3, respectively. The tumor sizes of the Open D3 and Lap D3 groups were 7.8 and 3.7 cm, respectively ( P
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vascular anatomy of the transverse Mesocolon and bidirectional laparoscopic d3 lymph node dissection for patients with advanced transverse colon cancer
Surgical Endoscopy and Other Interventional Techniques, 2019Co-Authors: Takashi Ueki, Masafumi Nakamura, Shuntato Nagai, Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Masao TanakaAbstract:Laparoscopic D3 lymph node dissection for transverse colon cancer is technically demanding because of complicated anatomy. Here, we reviewed the vascular structure of the transverse Mesocolon, explored the extent of the base of the transverse Mesocolon, and evaluated the feasibility and oncological safety of D3 lymph node dissection. We retrospectively reviewed the clinical records of 42 patients with advanced transverse colon cancer who underwent curative surgery and D3 dissection at Kyushu University Hospital between January 2008 and December 2015. We examined the venous and arterial anatomy of the transverse Mesocolon of each resection and compared surgical outcomes between patients who underwent laparoscopic D3 (Lap D3) and open D3 (Open D3) dissection. Patients included two with Stage I, 18 with Stage II, 20 with Stage III, and two with Stage IVA. Thirty-six (85.7%) and six (14.3%) patients underwent Lap D3 or Open D3, respectively. The tumor sizes of the Open D3 and Lap D3 groups were 7.8 and 3.7 cm, respectively (P < 0.001). The Lap D3 group had significantly less blood loss (26 mL vs 272 mL, P = 0.002). The other outcomes of the two groups were not significantly different, including 3-year overall survival (87.7% vs 83.3%, P = 0.385). We observed four patterns of the middle colic artery (MCA) arising from the superior mesenteric artery (SMA), and the frequency of occurrence of a single MCA was 64.3%. The right-middle colic vein (MCV) was present in 92.9% of resections and served as a tributary of the gastrocolic trunk, and 90.5% of the left MCVs drained into the superior mesenteric vein (SMV). The root of the transverse Mesocolon was broadly attached to the head of the pancreas and to the surfaces of the SMV and SMA. Laparoscopic D3 lymph node dissection may be tolerated by patients with advanced transverse colon cancer.
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Laparoscopic high anterior resection for triple colorectal cancers with persistent ascending and descending Mesocolons: A case report.
Asian journal of endoscopic surgery, 2018Co-Authors: Kyoko Hisano, Takashi Ueki, Hiroshi Kono, Naoki Ikenaga, Ryo Maeyama, Hiroyuki Konomi, Masayuki Okido, Nobuaki Yamashita, Junichi Motoshita, Hitoshi IchimiyaAbstract:Persistent Mesocolon is an embryological anomaly of the colon resulting from failure of the primitive dorsal Mesocolon to fuse with the parietal peritoneum. We herein present a case of laparoscopic high anterior resection for triple colorectal cancers with persistent ascending and descending Mesocolons and a right-bound inferior mesenteric artery. Preoperative 3-D CT demonstrated that the sigmoid colon had shifted to the right abdomen and was located under the ascending colon. Moreover, the inferior mesenteric artery and vein traveled toward the right abdomen accompanied by the mesentery of the descending colon. Adhesiolysis between the ascending and sigmoid colon was initially performed, and the sigmoid colon was placed in its normal position. The inferior mesenteric artery was then divided with lymph node dissection using a medial approach, and high anterior resection was completed. An understanding of the anatomical characteristics of persistent Mesocolon is important to ensure safe laparoscopic surgery.