Laparoscopic right hemicolectomy for a patient with idiopathic retroperitoneal fibrosis: A case report.

A 62-year-old man with abdominal pain and lumbago was admitted to our hospital. Blood examination revealed renal insufficiency, and CT revealed retroperitoneal fibrosis causing bilateral hydrocele and ureteral compression. A colonoscopy was performed to rule out secondary retroperitoneal fibrosis due to malignancies, and this imaging revealed an ascending colon cancer. Laparoscopic right hemicolectomy with lymphadenectomy and retroperitoneal biopsy were performed. The retroperitoneum was filled with hard, white fibrous tissue, which made it difficult to mobilize the right mesocolon from the retroperitoneum. Devascularization performed before mobilization allowed for a safe and oncologically feasible procedure. Histologically, there were no malignant cells in the retroperitoneal tissue. The patient has been without colon cancer reoccurrence for 4 years. When the surgical challenges that distinguish these patients from ordinary cases are recognized preoperatively, laparoscopic colectomy may be a feasible option for patients with colorectal cancer with idiopathic retroperitoneal fibrosis.

[Dormant chemotherapy by low-dose FP and low-dose UFT-E in recurrent gastric cancer with long-term survival--a case report].

We experienced a case of recurrent gastric cancer with a long-term survival. A 64-year-old man was admitted to the hospital for advanced gastric cancer in the upper stomach. Abdominal CT scan revealed para-aortic lymph nodal metastases. The patient underwent total gastrectomy, distal pancreatectomy, splenectomy, left adrenectomy, and left nephrectomy with D4 lymph node dissection, in what was a curability B resection. Conclusive findings were t2 (ss), n4, H0, P0, M0, and stage IVb. One year after the operation, para-aortic lymph node recurrence was evaluated. The patient was treated with low-dose cisplatin-5-FU therapy, and a partial response was observed and continued for over 2 years with an administration of UFT-E (300 mg/day). He died of repeated aggravation of para-aortic lymph node metastases 6 years and 2 months after the operation. We considered that the long-term survival of this patient was attributable to a 3-year tumor dormancy induced by low-dose cisplatin-5-FU therapy and administration of low-dose UFT.