Question
A 35-year-old woman sustained a traumatic blow to her left breast. Initially, there was a 3-cm contusion that resolved within 4 weeks, but she then felt a firm lump that persisted below the site of the bruise 2 month later. What is the most likely diagnosis for this lump?
| A. |
Fibroadenoma
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| B. |
Sclerosing adenosis
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| C. |
Fat necrosis
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| D. |
Ductal carcinoma in situ
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Show Answer
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Correct Answer � C
Explanation
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Answer : C Fat necrosis
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The condition described in question is fat necrosis.
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Fat necrosis is typically caused by trauma to the breast. The damaged, necrotic fat is phagocytosed by macrophages, which become lipid laden. The lesion resolves as a collagenous scar within weeks to months.
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The firm scar can mammographically and grossly resemble a carcinoma, however.
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A fibroadenoma is a neoplasm, and tumors are not induced by trauma. Sclerosing adenosis is a feature of fibrocystic changes, a common cause of nontraumatic breast lumps.
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An intraductal carcinoma may not form a palpable mass lesion.
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