PD1 and PDL1 expression in primary central nervous system diffuse large B-cell lymphoma are frequent and expression of PD1 predicts poor survival.

Primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL) is a rare and aggressive type of diffuse large B-cell lymphoma (DLBCL) whit poorly understood pathogenesis. Finding biomarkers associated with patient survival may be important for understanding its physiopathology and to develop new therapeutic approaches. We investigated 32 PCNS-DLBCL from immunocompetent patients for BCL2, CMYC, LMO2, and P53 expression and for cytogenetic aberrations of BCL2, BCL6, and MYC genes, all known for their prognostic value in systemic DLBCL (s-DLBCL).

Juvenile kyphosis: effects of different variables on conservative treatment outcome.

We reviewed the records of 212 patients with idiopathic or Scheuermann-type juvenile kyphosis (Scheuermann's disease). The 200 patients available for follow-up were divided into three groups depending on the degree of angular deformity, and the influence of different variables on treatment outcome in each group was investigated. A very influential positive variable was combined treatment with a body cast plus brace; exercise treatment also produced acceptable results.