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Fig. 3B Temporal changes of tumor configuration are shown on serial
MR studies (fast spin-echo T2-weighted sagittal images) obtained in
49-year-old woman with stage IIB squamous cell carcinoma of cervix. During
course of RT, at 21.6 Gy/2.2 weeks (B) and at 45 Gy/5 weeks (C),
tumor (arrows) becomes increasingly irregular and is classified as
complex in configuration.