Recurrence after gross-total resection of low-grade pediatric brain tumors: the frequency and timing of postoperative imaging.

Object: Low-grade glial and glioneuronal brain tumors are frequently encountered in the pediatric population and can be effectively treated by resection. The authors aimed to use imaging to evaluate how often tumors recurred and to determine if recurrences were associated with any clinical symptoms, along with the financial costs of imaging, in patients with radiographically proven gross-total resection (GTR) at Boston Children's Hospital. These data were assessed to propose guidelines regarding postoperative surveillance.

Etiology of hepatocellular carcinoma in Latin America: a prospective, multicenter, international study.

Background/aims: No prospective study has been published investigating etiology of HCC in Latin America. The primary aim of this prospective study was to analyze the etiology of liver disease in patients with HCC from our area. Secondary aims were to evaluate staging using Okuda and BCLC classifications; and percentage of patients receiving treatment.