This 62-year-old woman presented with clumsiness in her right hand. Magneti
c resonance imaging demonstrated a small lesion mimicking a meningioma, whi
ch had arisen from the tentorium and contained notable edema.
Full recovery was achieved by total removal of the lesion, which was diagno
sed as a lymphoid mass resembling giant lymph node hyperplasia on histologi
cal examination. The lack of notable findings on whole-body and laboratory
studies was compatible with a rare case of intracranial Castleman's disease
of solitary form. The authors document clinical, neuroradiological, and pa
thological features of this rare disease.