[Gallbladder Cancer with Multiple Liver Metastases Completely Responding to Gemcitabile plus Cisplatin Chemotherapy-A Case Report].

A 59-year-old man was diagnosed with cholecystolithiasis and cholecystitis and underwent cholecystectomy. The pathological findings were moderately differentiated adenocarcinoma(pT2)in the gallbladder fundus. Sixteen days after surgery, he visited our hospital due to jaundice. Abdominal enhanced CT and EOB-MRI revealed multiple liver metastases and lymph node metastases in the hepatoduodenal ligament that we deemed to be unresectable. A metallic stent was inserted for bile duct obstruction, and he underwent chemotherapy with gemcitabine plus cisplatin(GC). After 12 courses of GC, the metastatic lesions disappeared, and the patient showed complete response. FDG-PET/CT showed FDG uptake in the hepatoduodenal ligament and we subsequently decided to perform surgery. He underwent resection of the extrahepatic bile duct and regional lymphadenectomy. The pathological findings revealed no residual carcinomas in the bile duct or lymph nodes. We are continuing chemotherapy at present, and the patient is alive with no signs of recurrence at 1 year and 3 months following the diagnosis of multiple liver metastases.

[A Case of Urachal Cancer at the Inserted Site of Cystostomy after 23 Years].

A 66-year-old man had bilateral lower limb paralysis 30 years ago owing to traumatic injury of the thoracic spinal cord, and surgery(cystostomy)was performed 23 years ago. He was transferred to our hospital followingtreatment of sepsis owingto a worseningdecubitus. There was a 4 cm sized mucin-producingtumor at the inserted site of cystostomy. We performed tumor resection. Histological examination revealed the tumor to be a mucin-producingwell -differentiated adenocarcinoma. There was no tumor in any other organ. There was a residual tumor at the inserted site, and it was located at the dome of the bladder, which we considered to urachal cancer. Therefore, we performed partial resection of the bladder. Histological examination revealed a well-differentiated adenocarcinoma extendingfrom the urachal epithelium, and thus, it was diagnosed as urachal cancer. This is an extremely rare disease and is the first report from Japan.

[A Case of Liver Recurrence of Choriocarcinoma and AFP-Producing Carcinoma of the Stomach Showing a Complete Histological Response after Chemotherapy].

A 65-year-old man was hospitalized for gastric cancer. Abdominal computed tomography detected lower gastric cancer and invasion of the liver. Initial laboratory data showed high levels of serum AFP(2,688.6 ng/mL). He underwent distal gastrectomy with left lobectomy of the liver and cholecystectomy. Histology confirmed that the tumor consisted of 2 components: primary gastric choriocarcinoma and AFP-producing carcinoma. The pathological staging was pT4b(liver), N3aM0, Stage ⅢC. After surgery, AFP levels decreased to within the normal limits. Adjuvant chemotherapy(S-1)was administered for 1 year after the operation. Fourteen months later, PET-CT and EOB-MRI detected liver recurrence. He was treated with weekly paclitaxel(PTX)chemotherapy for the liver recurrence. After 12 courses, the tumor had disappeared. The patient was continuously treated with weekly PTX and is doing well without recurrence 24 months after the resection of the liver tumor. Co-existence of primary gastric choriocarcinoma and AFP-producing carcinoma is very rare. We report a case of liver recurrence of choriocarcinoma and AFP-producing carcinoma of the stomach showing a complete histological response after chemotherapy.

[A Case of Multiple Lymph Node Metastases Treated with Nivolumab after an Adrenalectomy for Solitary Adrenal Metastasis of Gastric Cancer after a Gastrectomy].

A 69-year-old man was hospitalized for gastric cancer. He underwent total gastrectomy with distal pancreatectomy, splenectomy, and cholecystectomy. Pathological staging was pT3N3aM0 and Stage ⅢB. Adjuvant chemotherapy(S-1)was administered postoperatively. Ten months later, left adrenal metastasis was detected on computed tomography(CT)scans. He was then treated with 4 courses of chemotherapy with SOX therapy and 2 courses of PTX plus RAM therapy for the left adrenal metastasis. However, the tumor size increased. He underwent adrenalectomy with left nephrectomy and partial resection of the transverse colon for the solitary adrenal metastasis. His pathological diagnosis was metastatic carcinoma of the left adrenal gland and lymph nodes, which invaded the left renal vein and originated from gastric carcinoma. Three months after the adrenalectomy, CT scans identified paraaortic, porta hepatis, and left supraclavicular lymph node metastases. The patient was continuously treated with nivolumab, for 20 courses, and is doing well with good PS. Adrenalectomy for solitary adrenal metastasis of gastric cancer very rarely occurs. We report a case of multiple lymph node metastases treated with nivolumab after an adrenalectomy for solitary adrenal metastasis of gastric cancer after a gastrectomy.

[Successful Treatment of Necrotizing Fasciitis Due to Ascending Colon Cancer-A Case Report].

A 70-year-old woman was brought to our hospital by ambulance because of severe groin pain on the right side. Computed tomography scan revealed a tumor in the ascending colon, intraperitoneal abscess spread to the subcutaneous tissues, and a large amount of pneumoderma. She was diagnosed with necrotizing fasciitis caused by penetration of ascending colon cancer and underwent lavage and drainage, right hemicolectomy, end ileostomy, and debridement of necrotic tissues on emergency. Postoperatively, she underwent debridement and irrigation at the bedside every day, but the necrotizing tissues spread. Debridement under general anesthesia was repeated on postoperative day 8. On postoperative day 20, negative pressure wound therapy(NPWT)was initiated to manage the exudates and wound condition, and healthy granulation tissues formed gradually. After 4 weeks, she underwent split-thickness skin graft implantation. The postoperative course was uneventful, and she was discharged from the hospital. She is currently on chemotherapy and has been alive for 1 year and 3 months after the first operation.

[A Case of Primary Sclerosing Cholangitis Difficult to Distinguish from a Hilar Cholangiocarcinoma].

A 78-year-old man, who had presented with onset of ulcerative colitis at the age of 56 years and had been in remission for the past several years, attended our hospital with a diagnosis of obstructive jaundice. A hilar cholangiocarcinoma with right hepatic artery invasion was suspected on contrast enhanced CT. An endoscopic retrograde cholangiography indicated Bismuth type 2 stenosis. The stenotic bile duct brushings revealed no malignancy. Primary sclerosing cholangitis(PSC)and IgG4- related cholangitis were included in the differential diagnosis; however, a significant result could not be obtained in any other examinations. A hilar cholangiocarcinoma could not be ruled out, and rt. hepatic lobectomy and caudate lobectomy with resection of the extrahepatic bile duct were performed after obtaining informed consent. The histopathological findings revealed no atypical cells in the stenotic lesion, but fibrosis and inflammatory cell infiltration were observed around the bile duct. These findings were consistent with PSC. On the other hand, atypical cell proliferation with lymph duct infiltration was found in the mucosa of the gall bladder. It is difficult to preoperatively diagnose PSC localized to the hilar bile duct, and if possible, the existence of concomitant malignant lesions in the biliary tract should be considered.

[A Case of Disseminated Peritoneal Leiomyomatosis with Several Recurrences].

A 60's woman had undergone abdominal total hysterectomy due to uterine leiomyoma 17 years previously. She underwent resection of multiple intra-abdominal tumors 9 years previously, and was diagnosed with disseminated peritoneal leiomyomatosis. Because of several recurrences, she was referred to our hospital and treated with GnRH agonist therapy. However, the tumors enlarged gradually and she underwent further resection for multiple intra-abdominal tumors. After surgery, we performed several operations. This is an extremely rare disease and we present this case with a discussion of the literature.

[A Case of MALT Lymphoma of the Rectum Treated with Intersphincteric Resection (ISR)].

A 60-year-old woman visited a local hospital complaining of melena. On colonoscopy, she was found to have 2 tumors in the lower rectum, each of approximately 10 mm in diameter. A biopsy of the tumors indicated MALT lymphoma, and the patient was referred to our hospital. We performed intersphincteric resection (ISR) with lymph node dissection according to the guidelines for the treatment of rectal cancer for 2 reasons. One reason was that eradication therapy for Helicobacter pylori was not effective in this case, and we needed to obtain an accurate histopathological diagnosis as to whether the patient had diffuse large B cell lymphoma (DLBCL). The other reason was that it was localized disease in the rectum, and that curative resection could be performed. MALT lymphoma of the rectum occurs frequently in the lower rectum and has a relatively good prognosis. It is important to consider the quality of life when selecting an operative method. ISR is thought to be a good option.

[A Case of Extranodal Nasal Type, NK／T Cell Lymphoma in the Ileum with Perforated Peritonitis during Chemotherapy].

A 65-year-old woman complaining of melena and a high fever was admitted to our hospital. Colonoscopy revealed a large tumor with a wide ulcer in the terminal ileum, and nasal type, extranodal NK/T cell lymphoma was suspected via biopsy. Owing to rapid progression of hepatocellular damage with hepatomegaly and splenomegaly, chemotherapy with CHOP was initiated immediately. Two days later, the patient developed panperitonitis, and emergency laparotomy was performed. The tumor in the terminal ileum widely adhered to the bladder, where a deep perforated ulcer was found, for which palliative ileocecal resection was performed. Enlargement of the residual tumor caused an abdominal abscess, intestinal obstruction, and hepatic failure, and the patient died 75 days after surgery. In summary, we initiated chemotherapy to control the deteriorating systemic condition of the patient. However, nasal type, extranodal NK/T cell lymphoma is a rapidly progressing lymphoma occasionally accompanied by perforation of the tumor. Surgery preceding chemotherapy should be considered an alternative treatment.

[A Case of Von Hippel-Lindau Disease with Nonfunctioning Pancreatic Neuroendocrine Tumors Treated by Duodenum-Preserving Resection of the Head of the Pancreas and Spleen-Preserving Resection of the Tail of the Pancreas].

A 26-year-old woman presented to our department with a diagnosis of multiple nonfunctioning pancreatic neuroendocrine tumors. She had a family history of pheochromocytoma and a medical history of bilateral adrenalectomy for pheochromocytoma at the age of 25 years. During follow-up treatment for adrenal insufficiency after the surgery, highly enhanced tumors in the pancreas were detected on contrast-enhanced CT. Other examinations found that the patient did not satisfy the clinical criteria for von Hippel-Lindau (VHL) disease. Considering her age and risk of developing multiple heterotopic and heterochronous tumors, we performed a duodenum-preserving resection of the head of the pancreas and spleen-preserving resection of the tail of the pancreas with informed consent. The histopathological findings revealed that all of the tumors were NET G1. She underwent genetic testing postoperatively and was diagnosed with VHL disease. This diagnosis meant that we were able to create an optimal treatment plan for the patient. If a tumor predisposition syndrome is suspected, VHL disease should be borne in mind and genetic testing after genetic counseling should be duly considered.

[A Case of Pseudo-Meigs Syndrome Associated with Metachronous Ovarian Metastasis from Ascending Colon Cancer].

We experienced a case of pseudo-Meigs syndrome associated with metachronous metastasis to the ovary from ascending colon cancer. A 65-year-old woman underwent curative surgery for ascending colon cancer at another hospital. A follow-up CT carried out 3 months after the surgery revealed a right ovarian tumor and a large amount of ascites. The patient was diagnosed with ovarian metastasis from ascending colon cancer with carcinomatous peritonitis. Palliative care was recommended, and she presented at our department for a second opinion. In spite of a large amount of ascites and pleural effusion, no disseminating tumor was detected on contrast-enhanced CT at our hospital, and we recommended that she undergo a diagnostic laparotomy. The laparotomy was negative for carcinomatous peritonitis and a right oophorectomy was performed. The histopathological findings indicated that the ovarian tumor was consistent with metastasis from ascending colon cancer. After the surgery, we initiated chemotherapy with mFOLFOX6+bevacizumab and the symptoms were well controlled. A follow-up CT carried out 11 months after the surgery revealed a left ovarian tumor and increased ascites, and the patient underwent a left oophorectomy. Then, chemotherapy with the same regimen was administered for 12 months, and she did not develop any signs of recurrence for 27 months after the surgery. Ovarian metastasis from colon cancer may occasionally cause pseudo-Meigs syndrome, and it is important to be aware of the usefulness of oophorectomy for the control of ascites and pleural effusion.

Extracorporeal membrane oxygenation-facilitated palliative radiotherapy for severe airway obstruction due to lung cancer: A case report.

Background: The use of venovenous extracorporeal membrane oxygenation (VV-ECMO), particularly during radiotherapy, for severe malignant central airway obstruction has rarely been reported. Case Presentation: A 47-year-old female presented to our emergency department with severe respiratory distress. Given her medical history, she was initially diagnosed with asthma. Despite initial treatment, which included intubation, her condition deteriorated, necessitating VV-ECMO. Computed tomography performed following the initiation of VV-ECMO revealed extensive lung cancer involving both bronchial types. Radiotherapy while on VV-ECMO led to a significant reduction in tumor size, allowing for the weaning of ECMO support and successful extubation. Conclusion: Malignant central airway obstruction is life-threatening. Our case demonstrates the efficacy of combining VV-ECMO with radiotherapy when conventional therapies fail. Further research is necessary to validate and explore this novel approach's implications.

[A case of advanced rectal cancer treated effectively with intersphincteric resection and preoperative chemotherapy].

An approximately 50-year-old man with rectal cancer(RbP)[ cT3(cA), cN3, cM0, and cStage IIIb] who desired anus preservation was administered mFOLFOX6 therapy. This treatment decreased the size of both the tumor and the lymph node, and intersphincteric resection (ISR) was performed. Histopathology demonstrated tumor invasion beyond the muscularis propria, and the histological effectiveness was Grade 2. Because computed tomography showed an abscess in the dissection area, we performed postoperative drainage and the patient recovered. Therapy with mFOLFOX6 was repeated after the patient was discharged from hospital. Increased adoption of anus-preserving surgery is expected via successful control of local recurrence and distant metastasis by neoadjuvant chemotherapy.

Preoperative Chemotherapy with Bevacizumab Extends Disease-free Survival After Resection of Liver Metastases from Colorectal Cancer.

BACKGROUND: The benefit of preoperative chemotherapy for patients with liver metastases from colorectal cancer remains unclear. We evaluated the efficacy of preoperative chemotherapy with bevacizumab in such patients, and attempted to identify clinical predictors of recurrence. PATIENTS AND METHODS: Between February 2007 and December 2013, a total of 65 liver resections for colorectal metastases were performed at our Institution; 47 patients underwent preoperative chemotherapy, which consisted of modified FOLFOX6 (mFOLFOX6) in 42 cases. The last clinical follow-up was in December 2014. Demographic and clinicopathological factors were reviewed for each patient, and potential predictors of recurrence after liver resection were evaluated. Disease-free survival (DFS) and overall survival (OS) were compared with respect to clinicopathological factors. RESULTS: The 3- and 5-year OS rates were 73.9% and 62.5%, respectively. The time at which metastases appeared, and the extent of metastasis according to the Japanese classification did not significantly affect OS or DFS. However, mFOLFOX6 plus bevacizumab significantly improved DFS compared to mFOLFOX6 alone. Patients did not experience worsening of hepatic dysfunction during preoperative chemotherapy, and tolerated surgical stress well. CONCLUSION: Preoperative chemotherapy with bevacizumab appears to be an effective treatment modality for liver metastases from colorectal cancer, and results in prolonged DFS.

Computed tomographic lymphography for sentinel lymph node biopsy in male breast cancer: report of two cases.

Male breast cancer is rare, accounting for less than 1% of breast cancers. Because of its rarity evidence of the usefulness sentinel lymph node biopsy (SLNB) for male breast cancer has not been established. Moreover, a navigation system which can easily determine the incision site of SLNB is needed because a second incision for SLNB is necessary in most cases. We report successful computed tomographic lymphography (CTLG)-guided SLNB in two male breast cancer cases: the first patient was a 79-year-old man and the second was a 64-year-old man. Both had presented with a lump behind the nipple. Clinical diagnoses were early breast carcinoma in both cases. The second patient took tamoxifen 20 mg daily as neoadjuvant endocrine therapy. SLNs were clearly visualized by CTLG, allowing mastectomies with SLNB to be performed. Both SLNB were negative, such that axillary lymph node dissection was not needed. Preoperative CTLG is useful for visualizing lymph flow and detecting SLN in male breast cancer.