Biomedical subjects
Publications and source records attributed to R N Fine.
Increased renal echogenicity, by ultrasonography, is seen in various pathological conditions. Correlation of renal size with the pattern and distribution of the increased echogenicity, and the patient's age and clinical data will limit the differential diagnosis and suggest the appropriate radiographic follow-up studies, obviating the need for unnecessary procedures.
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Evaluation of 75 cadaver donor retransplants revealed that the primary factor influencing allograft survival is patient responsiveness as reflected by sensitization with preformed cytotoxic antibodies. Actuarial allograft survival rates for nonpresensitized (less than 5%) and moderately presensitized (5-50%) recipients were significantly (p less than 0.001) better than those of highly presensitized (greater than 50%) recipients. Although HLA antigen histocompatibility did not have a statistically significant effect on retransplant outcome, it appeared to influence allograft survival in the highly presensitized recipient. An approach to the management of children who lose an initial or subsequent allograft is indicated by these data.
Urinary retention in children is rarely caused by an extrinsic compression of an extragonadal pelvic mass. The sonographic appearance of these masses are divided into 3 categories: 1) solid, 2) fluid-filled, and 3) mixed. Familiarity with the sonographic spectrum of these lesions can limit the differential diagnosis, will suggest specific follow-up procedures needed for an accurate diagnosis and will eliminate the need for unnecessary invasive workups.
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