Ultrasound and Doppler findings in a rare case of Castleman's disease of the parotid.

Castleman's disease of the parotid gland is an extremely rare entity, with fewer than 20 cases reported in world literature so far and only 1 previous case report describing the ultrasound findings. The Doppler findings of parotid Castleman's disease have never been described before to the best of the authors' knowledge. This report describes the ultrasonographic and Doppler findings in a histopathologically proven case of Castleman's disease of the left parotid gland in a young man.