A comparison of sagittal MRI and lateral radiography in determining the Insall-Salvati ratio and diagnosing patella alta in the pediatric knee.

Background: The Insall-Salvati ratio is a technique for determining patellar height that relies on bony landmarks. Magnetic resonance imaging (MRI) and plain radiography are used interchangeably to assess the Insall-Salvati ratio in the pediatric population despite the lack of validity in the literature.

Objective: The purpose of this study was to investigate if the Insall-Salvati ratio and patella alta as determined on MRI are comparable to those determined on radiography in pediatric patients.

Benign sacrococcygeal teratoma incidentally found on routine scoliosis radiographs in a 12-year-old female: a case report.

Objective: To describe the imaging characteristics of sacrococcygeal teratomas and to review appropriate diagnostic evaluation and management.

Clinical Features: 12-year-old otherwise healthy, asymptomatic female with an incidental pelvic mass found on routine scoliosis radiographs.

Intervention And Outcome: The pelvic mass was further evaluated by MRI and CT scan.

Congenital infantile fibrosarcoma: review of imaging features.

Background: Fibrosarcoma is a rare tumor in children with limited information on imaging features of these tumors in the literature.

Objective: To retrospectively review the imaging features of histologically proven congenital infantile fibrosarcoma.

Materials And Methods: The list of histologically confirmed congenital infantile fibrosarcomas between November 1999 and June 2013 was obtained from the oncology-pathology database.