[99m-Tc-Technetryle mammascintigraphy: clinical protocol and first experience in clinical diagnosis of breast cancer].

Analyzing the results of 99mTc-Technetryle mammascintigraphy in 41 females with breast cancer indicated that polypositional planar mammascintigraphy ensures a high sensitivity (over 88%) in revealing a primary nodule in T1, (more than 95%) in large tumors at above 95% specificity. No nodal accumulation of 99mTc-Technetryle was observed in controls (with fibrocystic mastopathy and suspected coronary heart disease. Mammascintigraphy showed a 85% sensitivity in recognizing axillary lymph nodal metastases too and ascertained that 14 patients had suptaclavicular and subclavian lymph nodal metastases. Therefore, 99mTc-technetryle mammascintigraphy is the method of choice in early detecting a tumorous process, primarily lymphogenic metastasis in breast cancer, and in evaluating its extent.