Environmental enrichment models a naturalistic form of maternal separation and shapes the anxiety response patterns of offspring.

Environmental enrichment (EE) mimics positive life experiences by providing enhanced social and physical stimulation. Placement into EE following weaning, or in later life, confers beneficial outcomes on both emotional and cognitive processes. However, anxiety-like behavior is also reported, particularly in rats exposed to enhanced housing during early development.

Reliability of multimodal evaluation of abnormal screening mammogram results.

Objective: Our purpose was to evaluate the effectiveness and reliability of the multimodal evaluation of suspicious or equivocal screening mammogram results by use of ancillary imaging studies and needle biopsies.

Study Design: This article reports on the experience of the Breast Evaluation Center at Long Beach Memorial Medical Center between 1989 and 1993 where 43,125 screening mammograms were performed.

Results: A total of 2866 patients were called back for additional evaluation, which consisted of magnification views and ultrasonography.

Improved mammographic accuracy.

Use of ancillary imaging studies to evaluate suspicious screening mammograms can improve their positive predictive value for detecting malignant lesions. In 1989 8181 screening mammograms were performed at the breast evaluation center at Memorial Hospital Medical Center in Long Beach. A total of 670 patients were called back for magnification views or ultrasonographic evaluation, and 92 of these patients underwent surgical biopsy.

Successful autogenous corticocancellous grafting of a radial defect complicating acute hematogenous osteomyelitis in an infant.

Recurrent osteomyelitis of the radius during infancy after initial hematogenous onset is rare. When encountered, this lesion may result in a segmental defect associated with limitation of forearm motion and progressive deformity. A 10-month-old girl developed distal radial osteomyelitis following bilateral otitis media.

14,501 deliveries with no maternal death.

In 14,501 deliveries at one hospital there have been no maternal deaths. Several factors have contributed to this eight-year record:1. Immediate availability of blood and liberal use in anemia and in abnormal bleeding has prevented deaths from hemorrhage.