[Severe encephalopathy in a bone marrow transplant in a case of immunodeficiency]

The case of a child with a severe immunodeficiency (purine-nucleoside-phosphorylase deficit) in whom an allogenic bone marrow transplant was performed is reported. CT scan showed image suggestive of cerebral infarction. Clinical course and hemostasis alterations suggest a non-bacterial thrombotic endocarditis. Neurologic complications in bone marrow transplant are review.