[Brain Metastasis Following Conversion Surgery for Sigmoid Colon Cancer-A Case Report].

A 64-year-old man was diagnosed with KRAS-mutant type sigmoid colon cancer with metastasis in the lung, liver, left adrenal gland, and para-aortic lymph node(T3N1M1b, Stage ⅣB[Union for International Cancer Control 8th edition]). Laparoscopic transverse colostomy was performed to treat colonic obstruction. Subsequently, a combination regimen of capecitabine plus oxaliplatin plus bevacizumab was administered.

[Axillary Lymph Node Recurrence after Curative Surgery for Transverse Colon Cancer-A Case Report].

We report the rare case of an 89-year-old female with axillary lymph node recurrence after curative surgery for transverse colon cancer who had undergone right hemicolectomy with D3 lymphadenectomy with an uneventful postoperative course. Pathological examination confirmed the tumor's status as tub2>sig, T4aN3M0, and pStage Ⅲc, and signet-ring cell carcinoma was remarkably found in the metastatic lymph node. Genetic testing revealed wild-type RAS, a BRAF mutation, and a high MSI.

[A Case of Triple Negative Breast Cancer with Successful Control of Recurrent Disease Activity for More than Ten Years].

A woman in her 70s underwent mastectomy plus axillary lymph node excision(Bt plus Ax)in December 2011 for left breast cancer classified as pT2N1M0, pStage ⅡB. The tumor was identified as an invasive ductal carcinoma(IDC), neural/ glial antigen 2(NG2), pT2(35 mm), INF γ, ly2, v0, g+, f+, s+, extensive intraductal component(EIC)-negative, ICT- positive, NCAT-positive, n(4/18), estrogen receptor(ER)-negative, progesterone receptor(PgR)-negative, human epidermal growth factor receptor 2(HER2)-negative, Ki-67 30-40%. Postoperative adjuvant fluorouracil plus epirubicin HCl plus cyclophosphamide(FEC)plus paclitaxel(PTX)therapy was administered.

[Laparoscopic Abdominoperineal Resection of the Rectum in a Case with Pagetoid Spread of Anal Canal Carcinoma].

The patient, a man in his 60s, first noticed an elevated lesion around the anus 3 years ago. The lesion failed to subside with the topical drug preparations prescribed at a local clinic, and the patient was referred to the Department of Dermatology of our hospital for further workup and treatment. The findings of biopsy from the lesion suggested skin infiltration of anal canal carcinoma, and the patient was referred to the Department of Surgery.

[A Case of Unresectable Advanced Gastric Cancer Successfully Treated with Conversion Surgery].

A man in his 70s consulted a local clinic with a chief complaint of difficulty eating. Upper gastrointestinal endoscopy revealed a type 4 tumor spreading irregularly from immediately below the esophageal cardia to the lower gastric body. The patient was referred to our hospital with a diagnosis of advanced gastric cancer(human epidermal growth factor receptor 2 [HER2]-positive moderately-differentiated adenocarcinoma)accompanied by lymph node enlargement.

[A Case of Recurrent Gastric GIST Who Survived for Long after Laparoscopic Resection and Imatinib Therapy].

A man patient in his 70s underwent left nephrectomy and laparoscopic partial gastrectomy for the treatment of a left renal cell carcinoma and gastrointestinal stromal tumor(GIST)arising from the stomach. Histopathologically, both the renal cell carcinoma and GIST were kit-positive, CD34-positive, and S-100 protein-negative, and the Ki-67 index was about 40% as determined by the hot spot method, so that it was diagnosed as an intermediate-group GIST. After surgery, the patient was followed without adjuvant therapy, as he did not wish to receive postoperative chemotherapy.

Curative resection after percutaneous drainage followed by preoperative panitumumab monotherapy for locally advanced sigmoid colon cancer with intra-abdominal abscess: a case report.

Background: The gold standard treatment for locally advanced colon cancer is curative surgery followed by adjuvant chemotherapy, although this approach is associated with serious concerns, such as high recurrence rates and occasionally unnecessary oversurgery. Neoadjuvant chemotherapy may be a promising strategy for overcoming these issues. This study reports a case of a recurrence-free patient who underwent curative resection without significant organ dysfunction after preoperative chemotherapy for locally advanced sigmoid colon cancer.

[Rectal Neuroendocrine Tumor G2 of Measuring Less Than 1 cm in Diameter with Lymph Node Metastases-A Case Report].

A 40-year-old man visited our hospital with rectal submucosal tumors measuring 5 mm and the 7 mm as detected by colonoscopy, following which an endoscopic submucosal resection was performed. Pathological examination revealed that the tumors was neuroendocrine tumor(NET); the tumor measuring 5 mm was NET G1 without lymphatic and venous invasion, while the 7 mm size was NET G2 with venous invasion but without lymphatic invasion. Lymph node and distant metastasis were not observed by computed tomography.

[A Case of Adenocarcinoma Arising from an Ectopic Pancreas of the Stomach Presenting as Pyloric Stenosis].

The patient was a 37-year-old man who visited a neighborhood clinic complaining of nausea and upper abdominal pain. Since examination revealed abdominal distention, he was referred to our hospital. Abdominal computed tomography at our hospital revealed retention of gastric contents and contrast-enhancing wall thickening localized to the pyloric region.

[R0 Resection following Chemotherapy for Colon Cancer Liver Metastasis Close to the Inferior Vena Cava and Hepatic Vein Confluence-A Case Report].

A 78-year-old man was diagnosed with sigmoid colon cancer, and laparoscopic sigmoidectomy was performed. On pathological examination, he was diagnosed with RAS-wild type sigmoid colon cancer with regional lymph node metastasis (T3, N1, M0, Stage ⅢB[Union for International Cancer Control 8th edition]). Computed tomography revealed S8 and S7 liver metastasis, 3 months after the initial surgery.

Celiac Artery Dissection and Retroperitoneal Hemorrhage in Median Arcuate Ligament Syndrome Treated With a Stent and Transcatheter Arterial Embolization: Preprocedural 4-Dimensional Computed Tomography Angiography Assessment.

A 61-year-old man presented with retroperitoneal hemorrhage caused by an aneurysm rupture of the pancreaticoduodenal arcade (PDA), and acute celiac artery dissection distal to celiac axis stenosis. Owing to the gradual growth of the false lumen, we planned to deploy a stent to the celiac artery dissection and embolize the PDA aneurysm. Prior to stent placement, we assessed the acute celiac artery dissection distal to the stenosis using four-dimensional computed tomography (CT) angiography through expiration/inspiration/expiration cycle.

[Long-Term Disease Control with Capecitabine plus Bevacizumab Therapy for an Elderly Patient with Unresectable Colon Cancer-A Case Report].

An 83-year-old man visited our hospital with liver tumors detected by abdominal ultrasonography. On investigation, he was diagnosed with sigmoid colon cancer with metastasis in the supraclavicular lymph node, liver, and para-aortic lymph node(T3N1M1b, Stage ⅣB[Union for International Cancer Control 8th edition]). He was administered combination therapy with capecitabine and bevacizumab owing to the increased age and Eastern Cooperative Oncology Group performance status score of 1.

[Pathological Complete Response Following Chemotherapy for Sigmoid Colon Cancer with Para-Aortic Lymph Node Metastasis-A Case Report].

A man in his 50s visitedour hospital with complaints of frequent urination, painful micturition, macrohematuria, and weight loss. On examination, he was diagnosed with RAS-wild-type sigmoid colon cancer invading the urinary bladder, ureter, andexternal iliac artery, with para-aortic lymph node metastasis(T4b, NX, M1a, Stage ⅣA according to the Union for International Cancer Control 8th edition guidelines)andsigmoid -vesical fistula. Thus, sigmoidcolostomy was performed.

[A Case of Extrahepatic Bile Duct Carcinoid Tumor Involving Diagnostic Difficulties].

A patient in his 60s had undergone laparoscopic anterior resection for the treatment of carcinoma of the rectum in February 2016. Histopathologic examination revealed the lesion as a pT2(MP)n(-)M0, fStage Ⅰrectal cancer. One year post-surgery, contrast-enhanced computed tomography(CT)revealed enhancement of parts of the intrapancreatic distal bile ducts.

[A Case of Small Bowel Perforation Caused by Malignant Lymphoma after Methotrexate Therapy for Rheumatoid Arthritis].

A 73-year-old woman had a history of medication, including methotrexate for rheumatoid arthritis, for 5 years. She had chronic epigastralgia for 2 weeks and found to have multiple submucosal tumors on upper gastrointestinal endoscopy in another hospital. She had a strong abdominal pain thereafter and diagnosed as having gastrointestinal perforation on the basis of CT scans.

Severe adverse events due to dihydropyrimidine dehydrogenase deficiency in a Japanese patient with colon cancer taking capecitabine: a case report.

Fluoropyrimidine has been commonly used not only in unresectable cases of metastatic colorectal cancer, but also in adjuvant therapy. Dihydropyrimidine dehydrogenase (DPD) is an enzyme encoded by the , which is responsible for the rate-limiting step in pyrimidine catabolism and breaks down more than 80% of standard doses of 5-fluorouracil (5-FU) and capecitabine, an oral prodrug of 5-FU. The lack of enzymatic activity increases the half-life of the drug, resulting in excess drug accumulation and toxicity which may lead to life-threatening side effects.

Erratum: Publisher Correction to: Severe adverse events due to dihydropyrimidine dehydrogenase deficiency in a Japanese patient with colon cancer taking capecitabine: a case report.

[This corrects the article DOI: 10.1007/s13691-018-0334-1.].

[Trastuzumab Combination Chemotherapy Followed by R0 Resection for Locally Advanced Human Epidermal Growth Factor Receptor 2-Positive Gastric Cancer-A Case Report].

A man in the 60s visited our hospital with the complaints of epigastralgia and weight loss. Following an investigation, he was diagnosed with human epidermal growth factor receptor 2(HER2)-positive gastric cancer with invasion to the pancreas (T4b[pancreas], N2, M0, Stage ⅣA[Union for International Cancer Control 8th edition]). Preoperatively, he was administered a chemotherapeutic regimen of S-1 and cisplatin plus trastuzumab.

Endovascular Aortic Repair for Isolated Infrarenal Aortic Stenosis.

An 87-year-old man with severe intermittent claudication and lower limb pain at rest was referred to our hospital for examination. Computed tomography (CT) angiography imaging showed a severe stenosis in the infrarenal abdominal aorta. The ankle brachial indices (ABIs) were 0.

[A Case of Complete Response to Computed Tomography-Guided Celiac Plexus Neurolysis of Pain Associated with Postoperative Recurrence of Colon Cancer].

The patient was a man in his 40s, who had undergone laparoscopic ileocecal resection with lymph node dissection(D3)for cecal cancer in January 2012. Histopathological examination of the resected specimens had revealed StageⅡ primary tumor with subserosal invasion and positive metastasis in 1-3 regional lymph nodes(pT2[SS]n1[+]). The pathological stage was Ⅲa(fStage Ⅲa), and the tumor showed RAS gene mutation.

Anastomotic Leakage Using Linear Stapling Device with Pre-attached Bioabsorbable Polyglycolic Acid Felt After Laparoscopic Anterior Resection.

Aim: Many studies have evaluated the risk factors for anastomotic leakage after laparoscopic anterior resection. In this study in order to increase the tightness of anastomoses and prevent bleeding from their staple lines, a linear stapler with pre-attached bioabsorbable polyglycolic acid (PGA) felt was used for rectal transection, and the short-term surgical outcomes were evaluated.

Patients And Methods: A prospective registry of 62 patients with rectosigmoidal or rectal carcinoma who initially underwent laparoscopic anterior resection using PGA felt for rectal transection was reviewed.

Acceleration of wound healing by ultrasound activation of TiO in Escherichia coli-infected wounds in mice.

Surgical site infections continue to be a common complication affecting surgical prognosis. Reactive oxygen species (ROS) are generated by ultrasound-irradiated titanium dioxide (TiO ) (UIT). Although excessive ROS production can cause cell damage, ROS at physiological levels mediate beneficial cellular responses, including angiogenesis.

Reevaluation of serum p53 antibody as a tumor marker in colorectal cancer patients.

Purpose: We reevaluated the serum p53 antibody (S-p53Ab) ELISA kit, which was approved as a tumor marker of colon cancer in the Japanese Health Insurance System in 2007.

Methods: S-p53Ab was measured as a tumor marker in 154 colorectal cancer patients, and the results were categorized by clinical and pathological variables. We then compared the positive frequency of S-p53Ab, carcinoembryonic antigen (CEA), and carbohydrate 19-9 (CA19-9).

Prolapse of Intussusception through the Anus as a Result of Sigmoid Colon Cancer.

Adult intussusception is rare and most often associated with cancer. We report a case of intussuscepted sigmoid colon into the rectum protruding from the anus of a 47-year-old woman. The cause of the intussusception was sigmoid colon cancer.

A case of primary gastric small cell carcinoma with a rare pattern of lymph node metastasis.

We report a very rare case of primary gastric small cell carcinoma (GSCC) that was accompanied with gastric tubular adenocarcinoma. A male in his 60s had an elevated tumor with a central ulceration in the middle stomach. The patient underwent a distal gastrectomy with lymph node dissection.