Primary central nervous system lymphoma (PCNSL) is extremely rare in immunocompetent children. We present the magnetic resonance imaging (MRI) and (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography-computed tomography (PET-CT) findings of such a case in a 14-year old immunocompetent boy. In this patient, PCNSL was associated with lymphomatosis cerebri. Familiarity with the findin...

encapsulating peritoneal sclerosis (eps) is a rare, acquired condition that has been described interchangeablywith peritoneal encapsulation (pe) as well as abdominal cocoon. eps causes complications for peritoneal dialysis (pd) patients. in eps, the small intestine is covered by a fibrotic and inflammatory peritoneal capsule that either partially or completely encases the bowel. for eps, there ...

Occasional cell cultures made from chicken embryos were resistant to infection with Rous sarcoma virus (RSV). A virus was isolated from the medium of these cultures that caused sensitive cultures to become resistant. This virus belonged to the avian lymphomatosis group. Other viruses of the group also induced resistance to infection by RSV. Thisprovided the first assay in vitro for leukemia vir...

BACKGROUND Intravascular lymphomatosis (IVL) is an uncommon systemic disease characterized by occlusion of small vessels by malignant lymphomatous cells. Central nervous system involvement usually presents as subacute encephalopathy, dementia, seizures, or multifocal cerebrovascular events. OBJECTIVE To increase awareness about IVL, an uncommon cause of neurological disease. DESIGN This is ...