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Splenic abscess is an infrequent complication in the immunocompromised patient. Six patients underwent splenectomy for presumed splenic abscess from 1987 to 1991. Chemotherapy altered the immune system of four patients; the human immunodeficiency virus (HIV) rendered the other two vulnerable to infection. Five presented with fever but none had leukocytosis;(More)
Spiny branchlets of cerebellar Purkinje neurons, thought to be sites of synaptic efficacy change during motor learning, degenerate during aging. To examine effects of behavioral experience on degeneration, Purkinje neurons were studied in aging rats housed for 4.5 months either under complex environment conditions promoting sensory-motor activity or in(More)
To assess the relative permanence of dendritic alterations induced by postweaning housing conditions, dendritic field parameters in the occipital cortex were compared among rats that had spent 30 days, beginning at 23-25 days of age, in a "superenriched" environment, rats that had the same treatment followed by 30 days of housing in individual cages, and(More)
In an effort to develop a more effective therapy for postsplenectomy sepsis, ceftriaxone and human intravenous immunoglobulin (IVIG), alone and in combination, were evaluated for their efficacy against experimental Haemophilus influenzae type B (Hib) bacteremia in splenectomized and sham-operated infant rats. Five-day-old animals had either a splenectomy or(More)
We report the cases of two patients who developed aortoesophageal fistulae after sustaining gunshot wounds to the chest. One suddenly exsanguinated 5 hours postinjury while in the angiography suite. The other manifested 4 weeks postinjury while in a rehabilitation hospital for associated spinal cord injury. The diagnosis and management were complicated, but(More)
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