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Metastatic and Secondary Tumors

Part of the Essentials in Cytopathology book series (EICP, volume 4)

Abstract

Metastatic and secondary tumors are uncommon in the breast (0.5%–2%) compared with primary neoplasms, but an accurate diagnosis on FNA is imperative for a definitive and rapid diagnosis, preceding the often nonsurgical treatment of these cases. The most common of these include malignant melanoma, non-Hodgkin lymphoma, and carcinomas of the lung, urogenital tract, and gynecologic tract. However, almost every known tumor has been seen metastatic to the breast and can create real diagnostic problems not only for the treating physicians and radiologists but also for pathologists when these lesions are aspirated. Radiologically (mammographically or on ultrasound), these lesions appear as single, round, discrete, and often large nodule or mass usually lacking the irregularities and microcalcifications of primary breast cancer.

Keywords

Invasive Lobular Carcinoma Neuroendocrine Carcinoma Primary Breast Carcinoma Hematologic Tumor Psammoma Body 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer Science+Business Media, LLC 2007

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