What does metachronous mean?

Medical Definition of metachronous 1 : not functioning or occurring synchronously the metachronous beating of cilia. 2 : occurring or starting at different times metachronous cancers of the large bowel — Journal of the American Medical Association.

What is Oligometastatic disease?

Listen to pronunciation. (AH-lih-goh-meh-TAS-tuh-sis) A type of metastasis in which cancer cells from the original (primary) tumor travel through the body and form a small number of new tumors (metastatic tumors) in one or two other parts of the body.

What is a metachronous cancer?

“Synchronous” tumors refer to cases in which the second primary cancer is diagnosed within 6 months of the primary cancer; “metachronous” tumors refer to cases in which the second primary cancer is diagnosed more than 6 months after the diagnosis of the first primary cancer.

What is metachronous metastasis?

Metachronous metastasis was defined as distant metastasis of primary CRC in other organs, excluding regional lymph nodes. Nearly all metastases (99%) were diagnosed at least 2 months after colorectal cancer diagnosis. Median follow-up was 5.0 years (range 1.2–8.8 years).

What causes multiple primary cancers?

Different mechanisms such as family history, genetic defects, hormonal factors, alcohol, tobacco, and environmental influences have been implicated in the development of multiple primary cancers.

Can a person get multiple cancers?

It’s important for all cancer survivors to know it’s possible to get another (new) cancer, even after surviving the first. This is called a second cancer. A second cancer is a new cancer that’s unrelated to any previous cancer diagnosis. It’s a completely different type of cancer.

What is second primary tumor?

Listen to pronunciation. (SEH-kund PRY-mayr-ee KAN-ser) A term used to describe a new primary cancer that occurs in a person who has had cancer in the past. Second primary cancers may occur months or years after the original (primary) cancer was diagnosed and treated.

Which is worse synchronous or metachronous metastatic disease?

Patients with metastatic renal cell carcinoma (mRCC) may present with primary metastases (synchronous disease) or develop metastases during follow-up (metachronous disease). The impact of time to metastasis on patient outcome is poorly characterised.

Are there any cases of metachronous synchronous neoplasms?

Quadruple primary synchronous and metachronous neoplasms are very rare and the incidence of them has been reported as below 0.1%; however, a few cases have reported to date. Metachronous adenocarcinoma of lung mimicking metastatic papillary thyroid carcinoma: A case report.

Which is the best definition of the word metachronous?

metachronous adjective Referring to lesions or conditions that appear at times differing from an event of interest—i.e., not synchronous.

How many patients with mRCC have synchronous metastasis?

Of 7386 patients with mRCC treated with first-line TKIs, 3906 (53%) and 3480 (47%) had synchronous and metachronous metastasis, respectively.

What does metachronous mean? Medical Definition of metachronous 1 : not functioning or occurring synchronously the metachronous beating of cilia. 2 : occurring or starting at different times metachronous cancers of the large bowel — Journal of the American Medical Association. What is Oligometastatic disease? Listen to pronunciation. (AH-lih-goh-meh-TAS-tuh-sis) A type of metastasis in which…