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Done Radiotherapy For Verrucous Carcinoma. How Long To Wait Before MRI Scan To Avoid False Positive Findings?
Hello,
I finished four weeks ago a course of radiation therapy (IMRT total dose oer 6 weeks was 70.7 Grays) for a Verrucous Carcinoma in the right tonsil region. There is a residual and visible tumour remaining mass four weeks post therapy approximately 4 cm X 3 cm X 2 cm. How long should I wait before taking a PET/MRI scan to avoid false positive findings of FDG uptake? Does the existence of the tumour at this stage any indication that radiation therapy was not successful?
I finished four weeks ago a course of radiation therapy (IMRT total dose oer 6 weeks was 70.7 Grays) for a Verrucous Carcinoma in the right tonsil region. There is a residual and visible tumour remaining mass four weeks post therapy approximately 4 cm X 3 cm X 2 cm. How long should I wait before taking a PET/MRI scan to avoid false positive findings of FDG uptake? Does the existence of the tumour at this stage any indication that radiation therapy was not successful?
Wed, 7 Aug 2013
Thank you for consulting health care magic.the existing mass might not be an indication that radiotherapy was not successful. The radiotherapy takes about 6 months interval for the tumor to heal.you can take the next MRI after 6 months.because mri taken before 6months will show even the necrotic tissues as tumor.
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