A Rare Case of Gastric Mantle Cell Lymphoma causing Superior Mesenteric Artery Syndrome in an Adult.

Superior mesenteric artery (SMA) syndrome or Wilkie syndrome is a rare condition that arises when the distal third of the duodenum becomes trapped between the SMA and the abdominal aorta causing intestinal obstruction. It is most commonly described in adolescents and rarely in adult patients. We present an interesting case of an adult who developed SMA syndrome from an uncommon gastric mantle cell lymphoma that was recognized early and treated surgically.

Predictors of nonsentinel lymph node metastasis in breast cancer patients.

Background: In order to define a future subset of breast cancer patients in whom the axilla may be staged by sentinel lymph node biopsy alone, the conditions under which nonsentinel axillary lymph node metastases occur must be delineated.

Methods: A prospective database including 212 breast cancer patients who underwent sentinel lymph node biopsy followed by completion axillary dissection at our institution was reviewed. A multivariate, logistic, stepwise regression was performed to evaluate the relationship between nonsentinel lymph node metastasis and patient age, primary tumor size, presence of lymphatic invasion, use of radioisotope to identify the sentinel node and degree of metastasis in the sentinel node.