There is little information on the numerical distribution of lymphoid nodules (LN) in distal segments of the human large bowel. A novel approach was therefore developed to assess the number of LN in the sigmoid colon, the rectosigmoid segment, the rectum, and the anal canal in humans. The distal large bowel from five cadavers was selected for quantitative study. The number of LN was scored macr...

The myoelectrical activity of the rectosigmoid has been studied in 66 subjects at rest and after stimulation with either pentagastrin 6.0 mug/kg hr intravenously in 21 cases, neostigmine 0.5 mg intramuscularly in 20 cases, or two bisacodyl suppositories in 19 cases. Two electrical rhythms were present at rest. A faster rhythm (frequency 6-9 cycles/min) predominated and its incidence was signifi...

Para-aortic lymph node recurrence is a rare type of metastasis from colorectal cancer, and no treatment has yet been established. Here, we report on a case of isolated para-aortic lymph node metastasis from rectosigmoid cancer that showed complete response to chemoradiation therapy with capecitabine/oxaliplatin plus bevacizumab. A 58-year-old woman underwent high anterior resection for rectosig...

The role of surgery in the treatment of patients with metastatic choriocarcinoma has diminished. We present a case of chemo-resistant metastatic choriocarcinoma salvaged by surgery. A 48-year-old patient presented with uterine perforation and severe intractable hemorrhage, and histological examination revealed a choriocarcinoma. After 6 years of disease-free state, recurrence occurred in the re...

Pseudomembranous colitis (PMC) is known to be associated with antibiotic treatment, but is not commonly related to antitubercular (anti-TB) agent, rifampin. PMC is frequently localized to rectum and sigmoid colon, which can be diagnosed with sigmoidoscopy. We report a case of rifampin-induced PMC with rectosigmoid sparing in a pulmonary tuberculosis patient. An 81-year-old man using anti-TB age...

From 20 patients with bladder injury due to war trauma, three patients were in critical condition because of extensive bladder injury associated with rectosigmoid injury and septicemia. In these three patients, early supravesical diversion was undertaken using ileal conduit. After stabilization of the patients' condition, undiversion was performed successfully, bringing the patients back t...

Over a period of 7 years 126 patients with rectosigmoid carcinoma considered unsuitable for surgery underwent endoscopic Nd:YAG laser treatment for palliation of symptoms and tumor eradication, if feasible. Altogether 72 (59%) of the lesions had distal margins less than 7 cm from the anus and 32 (23%) above the peritoneal reflection. In 14 patients with tumor less than 3 cm in diameter, symptom...

A 43-year-old female noticed hematochezia and lower-right abdominal pain during menstruation. Her family doctor detected a mass by computed tomography at the ileocecum. She was referred to our hospital and colonoscopy was performed. We observed extrinsic pressure resulting in mucosal change at the ileocecum. We also observed a submucosal tumor-like lesion at the rectosigmoid. We performed biops...

BACKGROUND Incidence rates of colorectal cancer (CRC) in New Zealand rank among the highest worldwide. Internationally, there has been evidence of a shift in colon cancer from left- to right-sided. The objective of this study was to determine trends in left- and right-sided colon and rectal cancers incidence by sex, age and ethnicity. METHODS Using datasets created by linking data from the Ne...