Do gallstones found before sleeve gastrectomy behave the same as those formed after surgery due to weight loss?

Background: Gallstone formation is prevalent in the bariatric population and after weight loss. We believe that gallstones found preoperatively behave differently and may not cause significant complications as those developing after weight loss. Thus, prophylactic cholecystectomy before or during sleeve gastrectomy (SG) may not be necessary.

Ruptured Mycotic Abdominal Aortic Pseudoaneurysm in a Patient on Hemodialysis Complicated with Oxacillin-Resistant Staphylococcus aureus Bacteremia.

Despite a high incidence of Staphylococcus aureus bacteremia in hemodialysis patients, bacterial invasion with aortic wall infection resulting in a pseudoaneurysm rarely occurs. This report describes a case of mycotic pseudoaneurysm of the abdominal aorta that grew rapidly and ruptured into the distal vena cava causing persistent bacteremia in a patient undergoing hemodialysis complicated with oxacillin-resistant S. aureus bacteremia.

Extra-adrenal myelolipoma presenting as efferent limb obstruction.

Myelolipomas are rare benign lesions composed of mature adipose tissue and immature hematopoetic cells. The adrenal gland is the most common location for these lesions, but cases of extra-adrenal myelolipomas have been described. The predominant location for extra-adrenal myelolipomas is the retroperitoneum, and very few reported cases describe these lesions in the peritoneal cavity.

Non-Langerhans cell histiocytosis with isolated CNS involvement: an unusual variant of Erdheim-Chester disease.

Benign histiocytic proliferations are identified by their component cells and classified as either Langerhans cell histiocytosis or non-Langerhans cell histiocytosis. We report a 58-year-old Caucasian woman who presented with diabetes insipidus and was found to harbor a large suprasellar mass. Histopathological analysis was consistent with non-LCH.

High fat feeding is associated with increased blood pressure, sympathetic nerve activity and hypothalamic mu opioid receptors.

Obesity and high fat diets are associated with an increased prevalence of diabetes, cardiovascular disease, and hypertension. However, the mechanism(s) linking obesity and high fat diet to these metabolic and cardiovascular disorders are not fully elucidated. Leptin stimulates the formation of pro-opiomelanocortin and its products.

Cardiovascular responses to central administration of mu and kappa opioid receptor agonist and antagonist in normal rats.

The response to centrally administered beta-endorphin has been characterized by decreasing sympathetic nervous activity and decreased cardiovascular tone. We investigated the effect of the central administration of both mu and kappa opioid receptor agonist and antagonists on cardiovascular responses. The administration of the mu agonist, DAMGO (0.