Abstract
Hamartoma, lipoma and fat necrosis are benign fatty tissue lesions that may present
as breast lumps. The mammographic appearance may be distinctive allowing imaging diagnosis
without biopsy. The characteristic feature of hamartoma is that of a compressible
mass containing radiolucent fat interchanged with dense fibrous connective tissue
surrounded by a thin radioopaque pseudocapsule. Lipomas are radiolucent with well-defined
thin smooth capsule. Twenty-seven percent of fat necrosis appears as discrete round
or oval radiolucent oil cyst with thin capsule and egg-shell calcification.
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© 2003 Elsevier Science Inc. Published by Elsevier Inc. All rights reserved.
