Clivus lymphoma.

Lymphoma as primary infiltration of the skull base, especially the clivus, is unusual and rare. However, increasing incidence of atypical lymphoma manifestations have been reported. As cranial base surgery becomes more common, it is important to be aware of lymphoma as a possible differential diagnosis of clivus lesions. This case presents a primary malignant lymphoma of the clivus, histologically confirmed after intra-operative MRI-guided transnasal-transsphenoidal biopsy. Copyright 2004 Springer-Verlag