| 72-year-old with left segmental mastectomy for mucinous colloid carcinoma and infiltrating lobular carcinoma; infiltrating lobular carcinoma involves inferior surgical margin and is within 0.1 cm of posterior (deep) surgical margin. |
| Sagittal T2W | Sagittal T2W FS |
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MRI: Biopsy cavity with irregular enhancing walls suspicious for residual disease.
Imaging performed on post-op day 21.
| Enhancement curve | |
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| Subtraction | |
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| Diagnosis: No residual malignancy on re-excision |
| This
case is in contrast to Case #4 where the thin enhancing biopsy cavity
walls were extensively involved with tumor.
As was previously discussed, the literature reports that MR imaging is more specific in detecting residual disease, the further post surgery the patient is. Evaluation for residual tumor has been recommended to be no earlier than 28 days post surgery. |
