Abdulrahman M Sibiany

Learn More
In this cross-sectional study, the prevalence of vitamin D deficiency [serum 25-hydroxyvitamin D (25(OH)D) <50 nmol/L] was 87.8% among Saudi Arabian men. There was a linear inverse relationship between serum 25(OH)D and intact parathyroid hormone (PTH) levels, but without a threshold of 25(OH)D at which intact PTH values plateaued. Vitamin D insufficiency(More)
AIM To correlate cyclooxygenase-2 (COX-2) expression profile with clinical and pathological variables to assess their prognostic/predictive value in colorectal carcinoma (CRC). METHODS Archival tumor samples were analyzed using immunohistochemistry for COX-2 expression in 94 patients with CRC. Patients were diagnosed and treated at the Departments of(More)
OBJECTIVE The aim of this analysis was to evaluate our management and outcome of eight cases of Sister Mary Joseph's Nodule of the umbilicus (SMJN). METHODS Between 2002 and 2009, we collected eight cases of SMJN and their clinical data were studied in a retrospective manner. RESULTS The mean age of the patients was 50.6 years (range, 34-58). There were(More)
We present a case of traumatic diaphragmatic rupture that presented two years after the initial thoracic injury. The patient presented with intestinal obstruction and colonic perforations. Through laparotomy, the diaphragmatic defect was repaired and the colonic perforations were closed. The patient had an uneventful post-operative recovery.
Hepatocellular carcinoma is the most common malignancy among males and the 7th among female patients in the Kingdom of Saudi Arabia. This is due to the endemicity of hepatitis B and hepatitis C. Spontaneous rupture of hepatocellular carcinoma is rare. We report 4 cases of spontaneous rupture of hepatocellular carcinoma. Initial control of bleeding was(More)
Rectal cancer is one of the most common malignancies in the West. The incidence in the developing countries is also increasing. There are various reasons for this escalation, including changes in dietary habits, particularly among urban dwellers, and parasitic infections. The risk of colorectal cancer is known to be increased in patients with long-standing(More)
BACKGROUND To determine the most common abnormal anatomical variations of extra-hepatic biliary tract (EHBT), and their relation to biliary tract injuries and stones formation. METHODS This is a retrospective review of 120 patients, who underwent endoscopic retrograde cholangiopancreaticography (ERCP) and/or magnetic resonance cholangiopancreaticography(More)
BACKGROUND Colorectal cancer (CRC) is the second most common cancer in the Kingdom of Saudi Arabia with ever increasing incidence rates. DNA methylation is a common event in CRC where it is now considered an important phenomenon in CRC carcinogenesis and useful for the classification and prognosis of CRC. METHODS To gain insight into the molecular(More)
Ann Saudi Med 2006;26(1):52-55 Antiphospholipid syndrome (APS) is a rare but important cause of thrombosis. It is suspected in patients who present with recurrent thrombosis or thrombosis in an unusual site. Gastrointestinal involvement is rare in this syndrome. Moreover, intestinal perforation in APS is very rare. We report a 19-year-old female patient who(More)
OBJECTIVE To find out whether the objective structured clinical examination (OSCE) using standardized patients allows the same evaluation of students as the traditional oral clinical examination (TOCE) using real patients. METHODS The results of 4 cohorts of students (904 students) in the end of posting examination (using the TOCE), and the end of year(More)