Symptomatic metastases to the pituitary infundibulum resulting from primary breast cancer.

Metastatic spread into the brain is not infrequently seen in association with epithelial neoplasms such as lung and breast cancer, among others. In the majority of cases such spread entails a poor prognosis. Metastasic spread to the pituitary gland, specifically to the area of the infundibulum is, however, a more rare presentation.

Remission of natural-killer cell lymphoma of the liver with anti-hepatitis C therapy.

Non-Hodgkin lymphomas (NHL) consist of a diverse group of lymphoproliferative neoplasms with unique patterns of biology, behavior, and differing responses to therapy. A rare subtype of malignancy arising from cells of putative natural killer (NK) origin is being recognized as a distinct clinicopathological entity. Viruses including hepatitis C have been reported in association with various types of NHL but not the NK-cell subtype.