JOURNAL OF THE PAKISTAN MEDICAL ASSOCIATION, cilt.63, sa.3, ss.393-395, 2013 (SCI-Expanded)
Follicular dendritic cell sarcoma (FDCS) of the head and neck region, associated with Castleman's disease (CD), is an extremely rare entity. To the best of our knowledge, we report the first case demonstrating the transformation of the former into the latter as documented in the same lymph node disection material.