Tc-99m MDP scintimammography in palpable and nonpalpable breast lesions: comparison with mammographic probability of malignancy.
We evaluated the contribution of Tc-99m methylene diphosphonate (MDP) scintimammography (MDP-SMM) to the diagnosis of breast cancer in 96 patients with 109 (52 palpable, 57 nonpalpable) breast lesions and compared them with mammography. Mammographic classification of the lesions were done as probably malignant (29), indeterminate (29) and probably benign (51). There were 23 malignant and 86 benign lesions. MDP-SMM successfully detected 16 of 23 (70%) breast cancers. Twelve of the 13 palpable and 4 of the 10 nonpalpable cancers showed Tc-99m MDP accumulation. Eight of the 86 (9%) benign breast lesions showed Tc-99m MDP accumulation (false positives). In the mammographically indeterminate group, MDP-SMM changed 22 of the 24 false positives into true negatives and showed 2 false negatives. In the 35 lesions detected in dense breasts, 10 of the 13 false positives were changed into true negatives and showed 1 false negative. As a conclusion, combined use of MDP-SMM with mammography seems to be useful in cases with mammographically indeterminate breast lesions and dense breasts and may help to preclude unnecessary breast biopsies.
Atasever
T
T
Gazi University Faculty of Medicine, Department of Nuclear Medicine, Ankara, Turkey. tamerata@ada.net.tr
Ozdemir
A
A
Turkölmez
S
S
Altinok
M
M
Isik
S
S
D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D018226:Fibroadenoma / Q000175:diagnosis; D006801:Humans; D008327:Mammography; D008875:Middle Aged; D010173:Palpation; D011877:Radionuclide Imaging; D012680:Sensitivity and Specificity; D013669:Technetium Tc 99m Medronate
D013669:Technetium Tc 99m Medronate