Introduction: The close proximity of the rectum tissue to the prostate gland results in rectal toxicity during prostate radiotherapy. Rectal Retractor (RR) is a rectal displacement technique that inserts into the rectum, as a result, the lateral and dorsal part of the rectal wall push away from high dose areas. The aim of this study was to investigate the dosimetric consequence...

Prostate cancer is the second leading cause of cancer death among men (25% of men with prostate cancer will die of the disease). The most common method of detecting this malignancy is digital rectal examination (DRE). Current DRE training requires medical students to examine a large number of patients before attaining adequate experience. We propose to solve this problem using a virtual reality...

Background: Rectal bleeding is a relatively uncommon, but potentially important problem in early infancy.  The common causes of fresh rectal bleeding in this age group are: bleeding diathesis (vit. K deficiency), infectious colitis, cow’s milk protein allergy and anal fissure.  Nodular lymphoid hyperplasia (NLH) is another cause of prolonged fresh rectal bleeding in early infancy. Objective: To...

cutaneous metastases of rectal carcinoma is a rare event. it occurs in fewer than 4% of all patients with rectal cancer. when present, it typically signifies a disseminated disease with a poor prognosis. early detection and proper diagnosis of metastatic rectal cancer can significantly alter treatment and prognosis. we report a 70-year-old male who underwent rectal resection with permanent colo...

background: radiotherapy is one of the most important factors which results in negative effects on wound healing and increases anastomosis leakage. diverting loop ileostomy has been usually performed after colorectal anastomosis in cases of colorectal cancer with a history of neoadjuvant radiotherapy to decrease the chance of leakage. considering the side effects of diverting loop ileostomy, th...

inflammatory bowel diseases are one of the important reasons of the referral to gi practitioners in our country and ulcerative colitis is the more frequent type of these disease in iran. in this study 200 cases of ulcerative colitis, which has been referred to imam khomeini hospital during that last 5 year, were studied. data was collected using the patient's records and face to face inter...

Uptake of capsule endoscopy in the large intestine has been very limited due to both risk missed lesions and often prolonged transit time, making it an unviable alternative standard colonoscopy. In this letter, we presented a controllable easy-to-use diagnostic tool, equipping novel vibration module inside robot for The capsule's motion was controlled by applying external alternating electromag...