J Med Assoc Thai 1999; 82 (3):242

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Scintimammography (SMM) in Breast Cancer Patients
Mangklzarak J Mail

The author retrospectively reviewed the scintimammography (SMM) using 20 I Tl and/or
99mTc-MIBI in 45 breast cancer patients. 36 cases with 37 intact breast masses and another 9 cases
with previous excision of the masses were studied. The sensitivity for the detection of the primary
breast cancer was 92 per cent and that of ipsilateral axillary lymph node metastasis was only 48 per
cent. SMM is helpful for the diagnosis of breast cancer and differentiating malignant from benign
masses, thus improving the accuracy of routine mammography. In postoperative cases SMM is
helpful to detect palpable local tumor recurrence and axillary node metastasis but it is not accurate
enough for assessing the extent of microscopic tumor involvement locally and also distant
metastasis. Thus, it is not recommended to use SMM alone for staging of breast cancer.
Key word : Scintimammography, Breast Cancer, Thallium-201, Technetium-99m MIBI

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