Clinicopathological conference: an adolescent girl with severe mental impairment and mucopolysacchariduria.

Thymic transplantation for relief of immunodeficiency diseases.

Tremendous advances have been made in replacement therapy regimens for the correction of immunodeficiency in transplant patients. Recently, cultured thymic fragments were shown to be devoid of lethal graft-versus-host cells and research in this area indicates that thymic transplantation may have a sustained positive effect in immunosuppressed patients.