Needle biopsy of a cystic retroperitoneal mass - the nuclear atypia out of proportion to mitotic activity and the bluish color of the cells are clues to diagnosing paraganglioma.
Case provided by Dr. Montgomery, Clinical Professor, Vice Chair of Faculty Development & Mentoring, Director of Surgical Pathology Fellowship Training Program
Co-Director, Pathology Reference Services, and Editor-In-Chief at Innovative Science Press.
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