The juvenile and adult forms of osteochondritis dissecans (OCD) of the knee have distinct clinical courses and variable prognoses. The stability of OCD lesions, determined by MRI, is the most ...
METHODS: Twenty-eight patients with juvenile pilocytic astrocytoma (JPA) of the brainstem (six in the midbrain, four in the pons, and 18 in the medulla) were identified from the medical records.