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FNAs of Metastatic Malignancies of Unknown Primary Origin


Evaluated by:  David B. Kaminsky, M.D., FIAC, March 21, 2018
Original release date: May 29, 2018
Access to this course expires on:  March 21, 2021
CME/SAMs 0.75

Faculty: Jan F. Silverman, M.D.

Learning Objectives:
  • Recognize that adenocarcinoma constitutes the majority of metastatic malignancies of unknown primary
  • Recognize the value of immunohistochemistry to separate basaloid squamous cell carcinoma from small cell carcinoma
  • Recognize that the most common sarcomatous appearing malignancy presenting as a met of unknown primary is a sarcomatoid carcinoma rather than a scarcoma.