Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
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Case Report

Volume 8, Number 5, May 2017, pages 145-148

A Rare Sternal Lesion on Magnetic Resonance Mammography Mimicking a Metastasis in a Patient With a History of Mamma Carcinoma: A Case Report


Figure 1.
Figure 1. (a) MRI T2-weighted image of the manubrium sterni: the lesion has a hyperintense rim and central inhomogeneous signal intensity, and has a diameter of 1.4 cm. (b) MRI T1 fat-sat: the lesion is isointense with a slightly hyperintense rim. (c) MRI T1 fat-sat after the admission of gadolinium: the lesion enhances homogeneously without wash-out.
Figure 2.
Figure 2. Image of the sternum on CT. A sclerotic lesion is shown, irregular and poorly defined.
Figure 3.
Figure 3. (a) Photomicrograph of the specimen (hematoxylin-eosin stain). The image shows areas of fat cells with multiple cytoplasmic vacuoles (red star), matching brown fat, positioned next to bone trabeculae. For comparison, also normal fat cells in the image (blue star). That it concerns fat cells is supported by positive immunohistochemical accentuation with S-100. (b) Photomicrograph of the specimen (S-100 stain), showing positive immunohistochemical accentuation.