What is Occult primary tumor - Meaning and definition

Occult primary tumor

Published by Roberto Wenk. Reviewed by Alison Ramsey. Last updated date: January 16, 2019.

Cancer in which the site of the primary (original) tumor cannot be found.
Most metastases from occult primary tumors are found in the head and neck.

Occult primary tumor. IAHPC Pallipedia. https://pallipedia.org/occult-primary-tumor. Accessed