Breast Lymphoma: Imaging Findings of 32 Tumors in 27 Patients
- 1 December 2007
- journal article
- Published by Radiological Society of North America (RSNA) in Radiology
- Vol. 245 (3), 692-702
- https://doi.org/10.1148/radiol.2452061726
Abstract
To retrospectively evaluate the imaging findings of breast lymphomas in patients who had undergone mammography, ultrasonography (US), magnetic resonance (MR) imaging, or combined positron emission tomography (PET)/computed tomography (CT) scanning. The institutional review board approved this HIPAA-compliant study and waived informed consent. Twenty-seven women who had been diagnosed with breast lymphoma (32 tumors) and had undergone preoperative imaging were identified from the surgical pathology database (mean age, 51 years; median, 55 years; range, 19-78 years at time of diagnosis). Two radiologists reviewed the mammographic, US, and MR images. One nuclear medicine physician reviewed the PET/CT scans. All available pathologic specimens were reviewed by a hematologic pathologist. The mean tumor size at diagnosis was 2.9 cm (range, 1-5 cm). Seventeen tumors manifested with a palpable mass, two with diffuse enlargement of the breast, and 13 were asymptomatic. Twenty-two women underwent mammography; 24, US; one, MR imaging; and 10, PET/CT scanning. Mammograms of 25 tumors showed a noncalcified mass in 19, global asymmetry in four, focal asymmetry in one, and no abnormality in one. US of 29 tumors showed a mass in 26 and diffuse architectural distortion in three. Masses typically were irregular, hypoechoic, and hypervascular and demonstrated indistinct margins or an echogenic boundary. Dynamic contrast material-enhanced MR imaging of one tumor showed an intensely and heterogeneously enhancing mass with rapid enhancement and washout characteristics. PET/CT scans of 13 tumors showed intense diffuse hypermetabolism in 12 and response to therapy in all 12 tumors. The imaging findings reported in this study should alert the radiologist to a possible diagnosis of breast lymphoma.Keywords
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