COMPARISON OF TI-201 CHLORIDE AND CITRATE-GA-67 SCINTIGRAPHY IN THE DIAGNOSIS OF THYROID-TUMOR - CONCISE COMMUNICATION

  • 1 January 1982
    • journal article
    • research article
    • Vol. 23  (3) , 225-228
Abstract
Twenty-five patients with thyroid tumors were scintigraphed and 201Tl chloride and 67Ga citrate. All cases showed a focal area of decreased activity with 131I or pertechnetate (99mTc), and each had a histological diagnosis after surgery or excisional biopsy. Tumors giving a positive scan with 201Tl chloride but negative results using 67Ga citrate prove to be differentiated carcinoma or poorly differentiated adenoma. All tumors that are positive with 67Ga are highly malignant types, and if these tumors are negative by 201Tl, undifferentiated carcinoma is suggested. 67Ga citrate scintigraphy is a useful procedure in locating distant metastases, in determining the area to be irradiated, and in judging the effect of therapy on undifferentiated carcinoma.

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