Riassunto: L’analisi di dati simbolici generalizza alcuni metodi statistici standard al caso di oggetti simbolici (SO). Questi oggetti, informalmente definiti “dati aggregati”, poiché sintetizzano le informazioni relative ad un gruppo di individui, possono essere confrontati al fine di individuare dei cluster, di classificarli o ordinarli in base al loro grado di generalizzazione. L’articolo pr...

We report about four cases of marked subchondral osteopenia on followup radiography after trauma and prolonged disuse. This localized form of disuse osteopenia has not been reported in details beside the followup imaging of talar neck fractures, where it is known as the "Hawkins sign." Due to its unique morphology, it can be easily recognized as a benign finding in posttraumatic followup imagin...

PURPOSE Dextranomer/hyaluronic acid injection of ureteral orifices is a popular option in the treatment of vesicoureteral reflux, with success rates ranging from 69% to 89%. We found only 1 study that followed patients beyond the initial postoperative voiding cystourethrogram, which describes a 96% success rate at 2 to 5 years but defines success as "nondilating" reflux. We examined our dextran...