Perforation of a retrocecal appendix resulting in retroperitoneal air: a case report.

There have been several case reports documenting acute appendicitis complicated by perforation presenting with retroperitoneal abscess formation. To date, there are no case reports of acute appendicitis in which the only sign for retroperitoneal perforation is the presence of retroperitoneal air as detected by computed tomography (CT). In the case presented, an 18-year-old male presented to the emergency department with clinical symptoms of acute appendicitis.

Overexpression of CEACAM6 in borderline and invasive mucinous ovarian neoplasms.

Objective: Identifying markers specific for mucinous ovarian neoplasms (MON) is important for cancer diagnosis and surveillance, and will help improve our general understanding of the pathobiology of these tumors. CEACAM6 overexpression appears to be an early molecular event with prognostic significance in gastrointestinal carcinomas. Microarray analysis previously demonstrated high CEACAM6 overexpression in MON's and this study sought to validate this finding.

The effect of sacral fracture malreduction on the safe placement of iliosacral screws.

Objectives: To determine the effects of cranial displacement on the safe placement of iliosacral screws for zone II sacral fractures.

Design: Computer imaging and dimensional analysis of a human cadaveric sacral fracture model.

Setting: Cadaveric dissection, Orthopaedic Research Laboratories, Newark, New Jersey.

The effect of sacral fracture malreduction on the safe placement of iliosacral screws.

Objectives: To determine the effects of cranial displacement on the safe placement of iliosacral screws for zone II sacral fractures.

Design: Computer imaging and dimensional analysis of a human cadaveric sacral fracture model.

Setting: Cadaveric dissection, Orthopaedic Research Laboratories, Newark, New Jersey.