The value of magnetic resonance imaging in diagnosis and size assessment of in situ and small invasive breast carcinoma.
until further notice
SourceAmerican Journal of Surgery, 192, 2, (2006), pp. 172-8
Article / Letter to editor
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American Journal of Surgery
SubjectCTR 1: Functional imaging; ONCOL 1: Hereditary cancer and cancer-related syndromes; UMCN 1.1: Functional Imaging
BACKGROUND: The value of magnetic resonance imaging (MRI) in diagnosis and size assessment of ductal carcinoma-in-situ (DCIS) and DCIS with small (<10 mm) invasive carcinoma was evaluated. METHODS: Fifty-four patients with DCIS and 12 patients with DCIS and small invasive carcinoma were included. Mammographic (N = 64) and MRI (N = 22) images were retrospectively reviewed. Correlation coefficients were calculated to assess differences in size between imaging and histopathologic examination. RESULTS: Mammographic rate of detection for DCIS was 48/52 (92%) and for DCIS with small invasive carcinoma, 10/12 (83%). MRI revealed 1 false negative case and the rate of detection for DCIS was 16/17 (94%). Correlation of mammographic size with histopathologic size was r = .44 (P < .01) and r = 0.49 (P = .03) for MRI. Mammography underestimated lesion size by 5 mm or more in 47%, whereas with MRI size was adequately assessed in 43% and overestimated in 38%. CONCLUSIONS: DCIS can be visualised on MRI with high sensitivity, although tumor size can be overestimated.
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