Dosimetric difference amongst 3 techniques: TomoTherapy, sliding-window intensity-modulated radiotherapy (IMRT), and RapidArc radiotherapy in the treatment of late-stage nasopharyngeal carcinoma (NPC).

To investigate the dosimetric difference amongst TomoTherapy, sliding-window intensity-modulated radiotherapy (IMRT), and RapidArc radiotherapy in the treatment of late-stage nasopharyngeal carcinoma (NPC). Ten patients with late-stage (Stage III or IV) NPC treated with TomoTherapy or IMRT were selected for the study. Treatment plans with these 3 techniques were devised according to departmental protocol.

Clinical features and outcome of the tall cell variant of papillary thyroid carcinoma.

Objectives: To study the clinical features and outcome of the tall cell variant (TCV) of papillary thyroid carcinoma (PTC).

Study Design And Methods: A single-institution retrospective analysis was performed to review patients with TCV and the usual type of PTC diagnosed from 1960 to 2000.

Results: Fourteen of 1,108 patients (median follow-up, 8.