Cancer of Unknown Primary
Cancer of Unknown Primary (CUP) or Occult Malignancy describes a collection of rare cancers that are poorly understood. It is sometimes called carcinoma of unknown origin. Between 4%-7% of all cancers are determined to be from an unknown primary. With CUP, malignant cells have spread in the body, but the source of the cancer -- the primary tumor -- can’t be found at the time of diagnosis. Here at Rogel Cancer Center, we have a clinic devoted to patients with this diagnosis. Learn more about it by visiting our Cancer of Unknown Primary webpage.
U-M Rogel Cancer Center 1500 E. Medical Center Drive Level B1 Reception E Ann Arbor, MI 48108
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