Carcinoma of unknown origin

Carcinoma of unknown origin is a diagnosis doctors use when the primary source of the cancer cannot be determined Cancer that has arisen in one place due to mutated cells may spread to other organs (metastasis) In carcinoma of unknown origin, metastases are found, but it cannot be determined in which organ the cancer started

Carcinoma of unknown origin is a rare and often dangerous type of cancer Determining the primary source of cancer is an important factor in choosing the best treatment Therefore, doctors try to determine in which organ the cancer started When this is not possible, treatment is directed at the most likely cause so that treatment is appropriate for the disease